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Home > ME Providers > Orthopedic Surgeons

Dr. David Alan Llewellyn Johnson, MD

(Dr. David AL Johnson, M.D.)

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Specializes in: Orthopedics/Orthopedic Surgery

University of Vermont College of Medicine (1999)

10 Wellspring Road
Biddeford, ME 04005

(207) 283-1126

Dr. David Alan Llewellyn Johnson, MD is an orthopedist in Biddeford, ME specializing in orthopedics/orthopedic surgery. He graduated from University of Vermont College of Medicine in 1999 and has 27 years of experience. Dr. David Alan Llewellyn Johnson, MD is affiliated with MaineHealth.

Office Locations

10 Wellspring Road
Biddeford, ME 04005

(207) 283-1126

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46 Barra Road Suite 103 Biddeford Me
Biddeford, ME 04005

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Noteworthy Medicare Patient Procedures Performed by Dr. David Alan Llewellyn Johnson, MD in 2024

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

Top 25%

By Affordability:

aspiration

aspiration procedures

injections

joint aspiration

joint injections

In 2012, Dr. David Alan Llewellyn Johnson, MD had a list price for aspiration, aspiration procedures, injections, joint aspiration, and joint injections that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maine. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2012 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	202
decompression surgery	24
doctor visit	676
excision	16
hospital care	17
injections	202
inpatient care	17
joint surgery	77
minimally invasive procedures	59
musculoskeletal imaging	21
reconstructive surgery	18
upper extremity surgery	77
X-rays	21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2013 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	179
debridement (removal of unhealthy tissue)	11
decompression surgery	23
doctor visit	626
hip imaging	20
injections	179
joint surgery	67
minimally invasive procedures	53
musculoskeletal imaging	53
reconstructive surgery	14
upper extremity surgery	67
X-rays	53

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	140
Female	218

**Age**
From 65 to 74	121
From 75 to 84	110
85 and over	52
Less than 65	75

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2013

Hypertension	67
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	28
Depression	34
Chronic Kidney Disease	24
Asthma	12
Osteoperosis	15
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2014 were aspiration, injections, upper extremity surgery and joint surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	151
decompression surgery	20
doctor visit	550
hip imaging	14
hospital care	15
injections	151
inpatient care	15
joint surgery	54
minimally invasive procedures	42
musculoskeletal imaging	25
reconstructive surgery	12
revision surgery	12
upper extremity surgery	54
X-rays	25

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	147
Female	207

**Age**
From 65 to 74	139
From 75 to 84	87
85 and over	47
Less than 65	81

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2014

Hypertension	66
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	26
Depression	36
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2015 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	208
decompression surgery	17
doctor visit	600
hospital care	12
injections	208
inpatient care	12
joint surgery	52
minimally invasive procedures	37
musculoskeletal imaging	23
reconstructive surgery	15
upper extremity surgery	52
X-rays	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	286
Female	464

**Ethnicity**
Non-Hispanic White	722
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	212
85 and over	92
Less than 65	154

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2015

Hypertension	66
High Cholesterol	63
Stroke	10
Ischemic Heart Disease	27
Depression	35
Chronic Kidney Disease	18
Asthma	16
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2016 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	211
debridement (removal of unhealthy tissue)	11
decompression surgery	24
doctor visit	652
injections	211
joint surgery	79
minimally invasive procedures	58
musculoskeletal imaging	28
reconstructive surgery	21
upper extremity surgery	79
X-rays	28

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	164
Female	234

**Ethnicity**
Non-Hispanic White	383
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	110
85 and over	49
Less than 65	88

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2016

Hypertension	68
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	25
Depression	32
Chronic Kidney Disease	23
Asthma	23
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	17
Diabetes	29
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2017 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	174
decompression surgery	19
doctor visit	499
injections	174
joint surgery	52
minimally invasive procedures	33
musculoskeletal imaging	39
reconstructive surgery	19
upper extremity surgery	52
X-rays	39

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	162
Female	204

**Ethnicity**
Non-Hispanic White	355
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	99
85 and over	37
Less than 65	83

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2017

Hypertension	69
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	26
Depression	39
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	33
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2018 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	196
decompression surgery	22
doctor visit	523
excision	12
injections	196
joint surgery	78
minimally invasive procedures	55
musculoskeletal imaging	20
reconstructive surgery	23
upper extremity surgery	78
X-rays	20

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	151
Female	190

**Age**
From 65 to 74	130
From 75 to 84	100
85 and over	33
Less than 65	78

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2018

Hypertension	67
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	33
Depression	40
Chronic Kidney Disease	24
Asthma	8
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2019 were aspiration, injections, joint surgery and upper extremity surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	215
decompression surgery	16
doctor visit	500
excision	12
injections	215
joint surgery	70
minimally invasive procedures	43
reconstructive surgery	27
upper extremity surgery	70

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	141
Female	190

**Ethnicity**
Non-Hispanic White	313
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	96
85 and over	35
Less than 65	63

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2019

Hypertension	70
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	31
Depression	37
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	26
Dementia	5
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2020 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	124
doctor visit	447
injections	124
joint surgery	18
reconstructive surgery	18
upper extremity surgery	18

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	135
Female	181

**Ethnicity**
Non-Hispanic White	303
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	95
85 and over	36
Less than 65	50

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2020

Hypertension	63
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	33
Depression	34
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	25
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2021 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	117
doctor visit	391
injections	117
joint surgery	19
musculoskeletal imaging	12
reconstructive surgery	19
upper extremity surgery	19
X-rays	12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	125
Female	148

**Ethnicity**
Non-Hispanic White	262
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	90
85 and over	22
Less than 65	40

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2021

Hypertension	67
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	32
Depression	32
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2022 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	119
doctor visit	384
injections	119
joint surgery	20
musculoskeletal imaging	33
reconstructive surgery	20
upper extremity surgery	20
X-rays	33

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	125
Female	167

**Ethnicity**
Non-Hispanic White	281
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	87
85 and over	30
Less than 65	36

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2022

Hypertension	75
High Cholesterol	74
Stroke	5
Ischemic Heart Disease	25
Depression	28
Chronic Kidney Disease	21
Asthma	15
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2023 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	92
doctor visit	296
fracture surgery	11
injections	92
joint surgery	16
lower extremity surgery	11
musculoskeletal imaging	32
reconstructive surgery	16
upper extremity surgery	16
X-rays	32

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	160
Female	191

**Ethnicity**
Non-Hispanic White	334
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	138
85 and over	37
Less than 65	41

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	22
Depression	24
Chronic Kidney Disease	24
Asthma	13
Osteoperosis	18
Atrial Fibrilation	18
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME during 2024 were aspiration, injections, reconstructive surgery and joint surgery.

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

aspiration	95
doctor visit	217
injections	95
joint surgery	13
reconstructive surgery	13
upper extremity surgery	13

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Male	124
Female	170

**Age**
From 65 to 74	103
From 75 to 84	112
85 and over	35
Less than 65	44

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	25
Depression	27
Chronic Kidney Disease	24
Asthma	13
Osteoperosis	16
Atrial Fibrilation	20
Heart Failure	22
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. David Alan Llewellyn Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. David Alan Llewellyn Johnson, MD treated as an orthopedist in Biddeford, ME were aspiration, injections, upper extremity surgery and minimally invasive procedures.

aspiration	160
debridement (removal of unhealthy tissue)	11
decompression surgery	20
doctor visit	489
excision	13
fracture surgery	11
hip imaging	17
hospital care	14
injections	160
inpatient care	14
joint surgery	47
lower extremity surgery	11
minimally invasive procedures	47
musculoskeletal imaging	28
reconstructive surgery	18
revision surgery	12
upper extremity surgery	47
X-rays	28

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD.

**Gender**
Female	197
Male	143

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	227
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	38
75 to 84	102
Less than 65	64
65 to 74	134

Average of Total of Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. David Alan Llewellyn Johnson, MD treated were hypertension, high cholesterol, depression and diabetes.

Hypertension	63
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	25
Depression	30
Chronic Kidney Disease	22
Asthma	11
Osteoporosis	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Atrial Fibrillation	11
Cancer	8
Dementia	6

Education & Training

Dr. David Alan Llewellyn Johnson, MD graduated from University of Vermont College of Medicine in 1999. He has a state license in Maine.

Medical School: University of Vermont College of Medicine (1999)

Licensed In: Maine

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. David Alan Llewellyn Johnson, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Stryker Corporation	$11,367 BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION $4,980	AEQUALIS PERFORM $2,804	TORNIER PERFORM REVERSED GLENOID $2,400	Reunion $755	vitoss $149	Other $278
DePuy Synthes Products, Inc.	$3,600 $3,600
Medical Device Business Services, Inc.	$2,948 HEALIX $152	$2,797
Tornier, Inc.	$2,847 UE - Aequalis Ascend Flex $2,674	UE - Aequalis IM Nail $162	UE - Simpliciti $11
ENCORE MEDICAL, LP	$1,054 DJO Surgical 3DKnee System $871	DJO Surgical AltiVate Reverse $170	DJO Surgical AltiVate Anatomic System $13
Other	$2,233 Recon-Upper Extremity Metal $965	BLUEPRINT PSI SYSTEM $301	Irrisept $147	DYNACORD $140	Persona $128	Other $552

**Types of Payments**
Consulting Fee	$16,546
Food and Beverage	$4,129
Travel and Lodging	$3,374

Research Payments

Dr. David Alan Llewellyn Johnson, MD has received 3 research payments totaling $1,190.

Biography

Dr. David Johnson's specialty is orthopedics/orthopedic surgery. Dr. Johnson's clinical interests include arthroscopic surgery, replacement arthroplasty (joint replacement), and carpal tunnel surgery. He is affiliated with MaineHealth. He attended medical school at the University of Vermont College of Medicine. Dr. Johnson completed his residency training at a hospital affiliated with the University of Connecticut.

Select Year:

Dr. David Alan Llewellyn Johnson, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. David Alan Llewellyn Johnson, MD in 2024

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. David Alan Llewellyn Johnson, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

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