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Home > MD Providers > Orthopedic Surgeons

Dr. Denis P. O'Brien, MD

Accepting New Patients

(3 Ratings)

Specializes in: Orthopedics/Orthopedic Surgery

Georgetown University School of Medicine (1983)

Professional interests include: tarsal tunnel surgery, injuries, dislocation, and more.

3801 International Drive Suite 200
Silver Spring, MD 20906

(301) 598-9715

Dr. Denis P. O'Brien, MD is an orthopedist in Olney, MD specializing in orthopedics/orthopedic surgery. He graduated from Georgetown University School of Medicine in 1983 and has 43 years of experience. Dr. Denis P. O'Brien, MD is affiliated with MedStar Montgomery Medical Center, Holy Cross Health and MedStar Health.

Office Locations

18101 Prince Philip Drive
Olney, MD 20832

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Holy Cross Health

3414 Olandwood Court
Olney, MD 20832

(301) 774-0500

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Holy Cross Health

3801 International Drive Suite 200
Silver Spring, MD 20906

(301) 598-9715

open_in_new

Some issues Dr. Denis P. O'Brien, MD can help you with:

Musculoskeletal Problems

The musculoskeletal system refers collectively to the bones, joints, ligaments, muscles, and nerves. It is what gives the body structure and movement. Because this system encompasses so much of the body, musculoskeletal problems are extremely varied and can happen almost anywhere. There are musculoskeletal problems that affect only the joints, those that affect the bones, those that affect tendons and ligaments, and those that can happen in any area of the body but cause pain and numbness.

Joint problems include bursitis and arthritis. Bursitis is the inflammation of a fluid-filled sac cushion on the outside of a joint, causing symptoms including pain and swelling. Arthritis is the inflammation and damage of a joint due to wear and tear or disease. There are several treatments for arthritis, but if the damage progresses far enough, joint replacement may be necessary. In joint replacement, a metal or plastic implant is surgically placed within the joint to make movement easier.

Bone problems include scoliosis, fractures, and osteoporosis. Scoliosis is a curvature of the spine, making the normally straight spine look like a 'C' or 'S.' It is treated with braces or surgery. Osteoporosis is a disease that causes bones to weaken and break easily. It's most common in women, especially older women. Fully half of all women over 65 have osteoporosis. Fractures are any break in the bone. They can be a simple crack or a severe and complicated shatter. Osteoporosis causes fractures in people who have it, but other causes are trauma (such as a fall) or overuse.

Tendon and ligament problems most often result from injury or overuse. Two good examples are ligament tears and tendonitis. The most common ligament tear is the ACL tear in the knee. This ligament supports and stabilizes the knee and is most often torn during sports activities. Tendonitis happens when a tendon, which connects muscles and bones together, becomes irritated and inflamed. This happens most often in older patients who push their bodies too far, leading to pain and swelling. Treatment for both tendon and ligament problems usually includes rest, ice, and supporting the area to let it heal.

Pain and numbness problems can be caused by overuse, disease, an injury, or a compressed nerve. Lower back pain and carpal tunnel syndrome are two of the most common conditions patients encounter. Lower back pain may be caused by sore muscles that have been overworked, or an injury to the disks separating the vertebrae in the spine. Lower back pain usually goes away on its own within a few days, but it may require medical treatment depending on the cause. Carpal tunnel syndrome occurs when the nerve at the base of the palm becomes trapped or pinched. Symptoms include tingling, pain, numbness, or weakness in the hand. Treatment involves rest and sometimes steroid injections.

Because the musculoskeletal system involves so much of the body, problems here can be incredibly varied in their type and severity. Some musculoskeletal problems will go away on their own or only require rest, while others may require medication, physical therapy, or even surgery.

Spinal Cord Stimulation (SCS)

If conservative treatment options and other spine surgeries have failed to provide someone pain relief, they may be a candidate for spinal cord stimulation. Spinal cord stimulation is a treatment for chronic back or leg pain. A spinal cord stimulator, which is surgically implanted underneath the skin (subcutaneously), can deliver electrical pulses to the area of pain. These pulses will reach the brain before the pain signals can, so instead of pain, patients will experience a tingling sensation.

To determine if spinal cord stimulation may benefit someone, they will first undergo a trial period. During this period, a temporary electrode lead is placed subcutaneously above the spinal cord, and it is connected to an external stimulator that they will carry with them. The procedure is typically completed within an hour, and patients may return home the same day. After a few days or weeks, the trial stimulator will be assessed for effectiveness. If the trial is unsuccessful, patients may undergo a second trial period, or the leads will be removed, and other treatment options will be considered. If, instead, a patient's pain is relieved during the trial, they will undergo surgery for implantation of a permanent stimulator and leads.

The components of a spinal cord stimulation system include the stimulator, the leads, and the wire that connects the two. Implantation of permanent leads may be percutaneous (through the skin) or involve a surgical incision. The spinal cord stimulator is implanted subcutaneously in the abdomen or buttock. The stimulator is battery-powered and may be rechargeable. If the battery is not rechargeable, it will last around 2-5 years, and a patient will need surgery to replace it.Their doctor will program the neurostimulator following the procedure.

After spinal cord stimulator surgery, patients may be released from the hospital the same day or the next one. In the weeks following the operation, patients will need to work with their doctors to find the optimal settings for their neurostimulator. Activities such as driving, twisting, bending, raising one's arms, sleeping on one's stomach, or lifting heavy objects should be limited.

Spinal Fusion

Spinal fusion is a surgical procedure to permanently join together two or more vertebrae, the bones in the spine. Certain spinal disorders can lead to instability and pain, and the idea behind spinal fusion is that fusing vertebrae together can both make them stronger and reduce motion, which can sometimes reduce pain.

There are several different types of spinal fusion surgery available, mostly depending on where a patient's pain is located and whether his or her surgeon will perform the procedure through the back, front, or side. In general, a fusion is performed by packing the vertebrae to be fused with grafted bone. This bone may be taken from the patient's hip, may be donated from a cadaver, or it may be a manufactured synthetic material. The bone is placed along the vertebrae, and sometimes, the disc that lies in between the vertebrae is removed and replaced with grafted bone. The bone material will grow and cement the two vertebrae together. After the bone graft is placed, the vertebrae are sometimes held in place with rods, screws, plates, or cages, depending on the weakness of the spine and needs of the graft.

Spinal fusion is a significant surgery and can take three to four hours or more. Recovery is typically two to four days in the hospital. After surgery, it is important to remember that the fusion takes time to grow from the bone graft. So, the actual fusion is not complete for several months. Patients will probably feel somewhat better right away, but it may take a while to feel the full effects of the fusion as the bone grows into place. In the meantime, doctors might have patients wear a brace to protect their spine and keep it properly aligned.

Spinal fusion is not used for all kinds of back pain. Changing the way the spine moves can lead to strain on the other joints in the back, and fusion is only performed when the benefits outweigh the risks. Some spine disorders that are treated with fusion include:

Curvature disorders, such as scoliosis and kyphosis
Degenerative disc disease
Spondylolisthesis, a disorder that causes vertebrae to slip over each other
Significant spinal fractures that cause instability
Weakened spine due to infection or tumor
Some cases of spinal stenosis, a narrowing of the spinal column
Chronic lower back pain (although the use of fusion to treat this is controversial)

Regardless of the diagnosis, there is always a possibility of 'failure' with spinal fusion, or of the surgery not fully solving the pain. This is more likely when fusion is used primarily to treat pain instead of structural problems. Patients can improve their chances of a successful outcome by stopping smoking, maintaining a healthy weight, moving their body every day, and following their doctor's instructions for any physical therapy that they are prescribed.

Noteworthy Medicare Patient Procedures Performed by Dr. Denis P. O'Brien, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

major joint aspiration

major joint injection

X-rays

In 2023, Dr. Denis P. O'Brien, MD performed more major joint aspiration, major joint injection, and X-rays procedures for Medicare patients than 95% of providers in related specialties within Maryland.

Top 10%

By Volume:

knee X-ray

In 2023, Dr. Denis P. O'Brien, MD performed more knee X-ray procedures for Medicare patients than 90% of providers in related specialties within Maryland.

Top 25%

By Volume:

spine X-ray

In 2012, Dr. Denis P. O'Brien, MD performed more spine X-ray procedures for Medicare patients than 75% of providers in related specialties within Maryland.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2012 were X-rays, injections, aspiration and rehabilitation.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	605
diagnostic evaluation	30
doctor visit	1211
hip imaging	86
hospital care	18
injections	635
inpatient care	18
joint surgery	57
lower extremity surgery	57
manual therapy	93
minimally invasive procedures	30
musculoskeletal imaging	484
pain management	30
pelvic imaging	52
reconstructive surgery	27
rehabilitation	592
spinal procedures	104
synovectomy	11
X-rays	640

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2013 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	581
doctor visit	1058
hip imaging	71
hospital care	17
injections	598
inpatient care	17
joint surgery	42
lower extremity surgery	42
minimally invasive procedures	25
musculoskeletal imaging	390
pain management	17
pelvic imaging	57
reconstructive surgery	17
spinal procedures	88
X-rays	535

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	194
Female	413

**Ethnicity**
Non-Hispanic White	481
Black	59
Hispanic	31
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	223
From 75 to 84	198
85 and over	155
Less than 65	31

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2013

Hypertension	73
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	17
Asthma	5
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2014 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	891
doctor visit	1193
hip imaging	71
injections	928
joint surgery	39
lower extremity surgery	39
minimally invasive procedures	16
musculoskeletal imaging	537
pain management	37
pelvic imaging	86
reconstructive surgery	23
spinal procedures	134
X-rays	757

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	233
Female	474

**Ethnicity**
Non-Hispanic White	567
Black	66
Hispanic	30
Asian	27
Other	17
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	235
85 and over	201
Less than 65	30

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2014

Hypertension	72
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	20
Asthma	6
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	30
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2015 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	766
doctor visit	1173
hip imaging	75
injections	794
joint surgery	42
lower extremity surgery	42
minimally invasive procedures	14
musculoskeletal imaging	494
pain management	28
pelvic imaging	76
reconstructive surgery	28
spinal procedures	111
X-rays	681

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	416
Female	930

**Ethnicity**
Non-Hispanic White	1034
Black	156
Hispanic	58
Asian	66
Other	32
Native American	0

**Age**
From 65 to 74	482
From 75 to 84	462
85 and over	338
Less than 65	64

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2015

Hypertension	72
High Cholesterol	65
Stroke	6
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	33
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2016 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	864
doctor visit	1275
hospital care	13
injections	905
inpatient care	13
joint surgery	35
lower extremity surgery	35
minimally invasive procedures	14
musculoskeletal imaging	478
pain management	41
pelvic imaging	77
reconstructive surgery	21
spinal procedures	134
X-rays	689

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	232
Female	487

**Ethnicity**
Non-Hispanic White	540
Black	83
Hispanic	32
Asian	36
Other	28
Native American	0

**Age**
From 65 to 74	268
From 75 to 84	251
85 and over	163
Less than 65	37

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2016

Hypertension	72
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	30
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2017 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	826
doctor visit	1215
injections	850
joint surgery	35
lower extremity surgery	35
minimally invasive procedures	11
musculoskeletal imaging	438
pain management	24
pelvic imaging	98
reconstructive surgery	24
spinal procedures	121
X-rays	657

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	219
Female	446

**Ethnicity**
Non-Hispanic White	486
Black	90
Hispanic	34
Asian	28
Other	27
Native American	0

**Age**
From 65 to 74	261
From 75 to 84	236
85 and over	139
Less than 65	29

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2017

Hypertension	72
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	27
Depression	21
Chronic Kidney Disease	24
Asthma	8
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	30
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2018 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	790
doctor visit	1335
injections	828
joint surgery	59
lower extremity surgery	59
musculoskeletal imaging	565
pain management	21
pelvic imaging	92
reconstructive surgery	59
spinal procedures	131
X-rays	788

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	269
Female	452

**Ethnicity**
Non-Hispanic White	494
Black	104
Hispanic	35
Asian	53
Other	35
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	232
85 and over	156
Less than 65	41

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2018

Hypertension	72
High Cholesterol	70
Stroke	6
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	26
Asthma	10
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	33
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2019 were X-rays, injections, aspiration and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	720
doctor visit	1286
injections	736
joint surgery	57
lower extremity surgery	57
minimally invasive procedures	15
musculoskeletal imaging	545
pain management	16
pelvic imaging	88
reconstructive surgery	42
spinal procedures	148
X-rays	781

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	259
Female	457

**Ethnicity**
Non-Hispanic White	493
Black	102
Hispanic	40
Asian	48
Other	33
Native American	0

**Age**
From 65 to 74	301
From 75 to 84	241
85 and over	144
Less than 65	30

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2019

Hypertension	70
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	31
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2020 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	778
doctor visit	1165
injections	819
joint surgery	17
lower extremity surgery	17
musculoskeletal imaging	415
pain management	22
pelvic imaging	41
reconstructive surgery	17
spinal procedures	114
X-rays	570

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	238
Female	400

**Ethnicity**
Non-Hispanic White	432
Black	90
Hispanic	46
Asian	37
Other	33
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	217
85 and over	126
Less than 65	35

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2020

Hypertension	69
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	29
Depression	24
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	8
Diabetes	30
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2021 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	958
doctor visit	1488
injections	1012
joint surgery	21
lower extremity surgery	21
musculoskeletal imaging	451
pain management	18
pelvic imaging	15
reconstructive surgery	21
spinal procedures	153
X-rays	619

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	263
Female	504

**Ethnicity**
Non-Hispanic White	524
Black	113
Hispanic	37
Asian	51
Other	42
Native American	0

**Age**
From 65 to 74	314
From 75 to 84	266
85 and over	152
Less than 65	35

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2021

Hypertension	68
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	25
Asthma	5
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	30
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD during 2022 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

aspiration	1205
closed (non-surgical) treatment of fracture	12
computer assisted surgery (CAS)	14
doctor visit	1572
injections	1266
joint surgery	29
lower extremity surgery	29
minimally invasive procedures	11
musculoskeletal imaging	475
pain management	38
reconstructive surgery	18
spinal procedures	171
X-rays	662

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	271
Female	553

**Ethnicity**
Non-Hispanic White	591
Black	106
Hispanic	34
Asian	51
Other	42
Native American	0

**Age**
From 65 to 74	328
From 75 to 84	281
85 and over	179
Less than 65	36

Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	20
Depression	18
Chronic Kidney Disease	18
Asthma	10
Osteoperosis	16
Atrial Fibrilation	14
Heart Failure	8
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Denis P. O'Brien, MD for Medicare patients.

The highest averages for the top procedures that Dr. Denis P. O'Brien, MD treated as an orthopedist in Olney, MD were injections, aspiration, X-rays and rehabilitation.

aspiration	816
closed (non-surgical) treatment of fracture	12
computer assisted surgery (CAS)	14
diagnostic evaluation	30
doctor visit	1270
hip imaging	75
hospital care	16
injections	851
inpatient care	16
joint surgery	39
lower extremity surgery	39
manual therapy	93
minimally invasive procedures	17
musculoskeletal imaging	479
pain management	26
pelvic imaging	68
reconstructive surgery	27
rehabilitation	592
spinal procedures	128
synovectomy	11
X-rays	670

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Denis P. O'Brien, MD.

**Gender**
Male	235
Female	465

**Ethnicity**
Black / African American	88
Asian / Pacific Islander	38
Non-Hispanic White	512
Native American / Alaskan Native	0
Hispanic	34
Other	26

**Age**
75 to 84	238
85 and over	159
Less than 65	33
65 to 74	270

Average of Total of Conditions of Medicare patients treated by Dr. Denis P. O'Brien, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Denis P. O'Brien, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	64
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	20
Asthma	6
Osteoporosis	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	27
Atrial Fibrillation	10
Dementia	11
Cancer	10

Education & Training

Dr. Denis P. O'Brien, MD graduated from Georgetown University School of Medicine in 1983. He completed residency at Georgetown University Hospital. He is certified by the Orthopedic Surgery, American Board of Orthopedic Surgery and has a state license in Maryland.

Medical School: Georgetown University School of Medicine (1983)

Residency: Georgetown University Hospital (1988)

Board Certification: Orthopedic Surgery, American Board of Orthopedic Surgery (1990)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Denis P. O'Brien, MD is associated with these hospitals and organizations:

MedStar Montgomery Medical Center

Holy Cross Health

MedStar Health

Ratings & Reviews

Dr. Denis P. O'Brien, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 3 ratings. We collect ratings and reviews of Dr. Denis P. O'Brien, MD from all over the web to help you find the right in Olney, MD.

Overall Rating

(3 Ratings)

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General Payments

These charts describe general payments received by Dr. Denis P. O'Brien, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Supreme Orthopedic Systems, LLC	$1,074 $1,074
Almatica Pharma Inc.	$601 Naprelan 750mg $601
Flexion Therapeutics, Inc.	$309 Zilretta $309
Ferring Pharmaceuticals Inc.	$160 EUFLEXXA $160
Horizon Pharma plc	$135 KRYSTEXXA $124	Duexis $11
Other	$143 CORAIL $72	SYNVISC-ONE $30	Kincise Surgical Automated System $21	HYMOVIS $15	DUEXIS-800mg Ibuprofen- 26.6mg Famotidine $4

**Types of Payments**
Education	$1,035
Food and Beverage	$808
Honoraria	$500
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$56
Travel and Lodging	$23

Biography

Dr. Denis Obrien is an orthopedics/orthopedic surgery specialist. He graduated from Georgetown University School of Medicine. Dr. Obrien completed his residency training at Georgetown University Hospital. His areas of expertise include the following: forearm fracture, carpal tunnel surgery, and sports health. Patient reviews placed him at an average of 5.0 stars (out of 5). Dr. Obrien's professional affiliations include Holy Cross Health and MedStar Montgomery Medical Center. He has an open panel in Olney, MD according to Holy Cross Health.