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Dr. William D. Mosier, MD

Accepting New Patients

(4 Ratings)

Specializes in: General Ophthalmology

National Autonomous University of Honduras Faculty of Medical Sciences (1982)

Professional interests include: anisocoria, diabetic retinopathy, cataract surgery, and more.

265 Laguna Road
Fullerton, CA 92835

(714) 871-2570

Dr. William D. Mosier, MD is an ophthalmologist in Fullerton, CA specializing in general ophthalmology. He graduated from National Autonomous University of Honduras Faculty of Medical Sciences in 1982 and has 44 years of experience. Dr. William D. Mosier, MD is affiliated with Providence, Providence Medical Foundation, Providence St. Jude Medical Center, St. Jude Medical Center (Fullerton), Providence Affiliated Physicians, St. Jude and WILLIAM D MOSIER MD INC A PROFESSIONAL MEDICAL CORPORATION.

Office Locations

265 Laguna Road
Fullerton, CA 92835

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Some issues Dr. William D. Mosier, MD can help you with:

Autoimmune Diseases

An autoimmune disorder happens when the immune system mistakenly attacks the tissues of its own body, causing symptoms of illness. There are more than 80 different types of autoimmune disorders. While some are very rare, others are fairly common. Combined, autoimmune disorders are one of the leading causes of death and disability in the United States, affecting approximately 24 million people.

A properly working immune system identifies foreign substances in the body that might cause illness, such as bacteria and viruses. The immune system then creates antibodies which attack the foreign substances, neutralizing them and keeping the body safe. In people with autoimmune disorders, something goes wrong with this process. For reasons that are not fully understand, the immune system creates antibodies to attack the patient's own tissues.

Symptoms of an autoimmune disorder depend on which tissue is being attacked by the immune system, but common symptoms of autoimmune disease include fever, fatigue, and a general feeling of just not being well. Autoimmune disorders are more common in women than in men, and they may run in families. Autoimmune disorders can affect various parts of the body such as blood vessels, connective tissue, endocrine glands, joints, muscles, red blood cells, skin, and many others.

It is common to have more than one autoimmune disorder at a time. Most are chronic, or life-long illnesses, although they may come and go in flares. Treatment for autoimmune disorders depends on which part of the body is being attacked. For example:

A type 1 diabetic whose pancreas has been damaged will need insulin.
A person with Hashimoto's whose thyroid has been damaged will need replacement thyroid hormones.
Someone with Sjogren's syndrome will need eye drops and mouth rinses to replace tears and saliva.

Many autoimmune disorders of all kinds are treated with immune-suppressing medications, such as corticosteroids (e.g. prednisone) to reduce the effect of the immune system.

Dacryocystorhinostomy (DCR)

Dacryocystorhinostomy, or DCR, is a surgical procedure used to bypass a blocked tear duct.

Normally, the tears that constantly bathe the eyes are drained through two tiny holes in the eyelid, where they run through a duct into the nose. This tear duct can become clogged or blocked, causing tears to back up and leading to watery eyes. Common causes of tear duct blockages include trauma, a facial tumor, and inflammation due to certain medical conditions, but usually the cause is not known. Clogged tear ducts are especially common in young children. If the blockage is permanent and located lower in the duct, near the nose, DCR may be performed to create a bypass and allow tears to drain freely again.

During DCR surgery, a small hole is made in the bone and tissue between the upper part of the tear duct and the nasal passage. Usually, a tiny plastic tube called a stent is placed into the opening to protect it and keep it open during healing. DCR may be performed through an open incision on the upper cheek near the nose, or it may be performed endoscopically using tiny instruments that are passed through the nostril. Open surgery is more common, and has a slightly higher success rate, although endoscopic surgery causes less pain and bleeding during recovery. DCR is able to correct the blockage and watering eyes in nearly 95% of cases.

The surgery itself takes only about half an hour. It is usually done under general anesthesia, which may require a short hospital stay while patients recover. Small amounts of bleeding from the nose are not uncommon for the first 24 hours, and bruising and swelling are expected for the first two weeks. Don't be alarmed if the eye continues to water at first. Swelling in the area due to surgery can cause the eye to water, but this should go away as patients heal.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2012 were eye procedures, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

diagnostic imaging	112
eye procedures	2882
ultrasound (sonogram)	112

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2013 were eye procedures, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

diagnostic imaging	109
doctor visit	11
eye procedures	3328
ultrasound (sonogram)	109

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	586
Female	861

**Ethnicity**
Non-Hispanic White	1200
Black	14
Hispanic	104
Asian	96
Other	33
Native American	0

**Age**
From 65 to 74	595
From 75 to 84	553
85 and over	272
Less than 65	27

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2013

Hypertension	65
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	30
Depression	12
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	7
Diabetes	33
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2014 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

capsulotomy	13
eye procedures	3909
laser treatment	13
ultrasound (sonogram)	374

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	596
Female	886

**Ethnicity**
Non-Hispanic White	1208
Black	17
Hispanic	116
Asian	104
Other	37
Native American	0

**Age**
From 65 to 74	581
From 75 to 84	577
85 and over	288
Less than 65	36

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2014

Hypertension	63
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	27
Depression	13
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	7
Diabetes	31
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2015 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

eye procedures	3365
ultrasound (sonogram)	105

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	1086
Female	1648

**Ethnicity**
Non-Hispanic White	2212
Black	32
Hispanic	220
Asian	204
Other	66
Native American	0

**Age**
From 65 to 74	1066
From 75 to 84	1078
85 and over	532
Less than 65	58

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2015

Hypertension	64
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	26
Depression	14
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	12
Chronic Obstructive Pulmonary Disease	7
Diabetes	31
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2016 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

eye procedures	2665
ultrasound (sonogram)	103

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	378
Female	559

**Ethnicity**
Non-Hispanic White	756
Black	0
Hispanic	67
Asian	77
Other	0
Native American	0

**Age**
From 65 to 74	333
From 75 to 84	399
85 and over	192
Less than 65	13

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2016

Hypertension	65
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	27
Depression	15
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	34
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2017 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

capsulotomy	14
eye procedures	2041
laser treatment	14
ultrasound (sonogram)	33

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	301
Female	437

**Ethnicity**
Non-Hispanic White	588
Black	0
Hispanic	53
Asian	65
Other	0
Native American	0

**Age**
From 65 to 74	269
From 75 to 84	305
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2017

Hypertension	66
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	27
Depression	15
Chronic Kidney Disease	26
Asthma	8
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	33
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2018 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

eye procedures	1696
ultrasound (sonogram)	24

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	262
Female	382

**Ethnicity**
Non-Hispanic White	511
Black	0
Hispanic	40
Asian	66
Other	0
Native American	0

**Age**
From 65 to 74	220
From 75 to 84	276
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2018

Hypertension	66
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	26
Depression	14
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	33
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2019 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

eye procedures	1811
ultrasound (sonogram)	20

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	269
Female	396

**Ethnicity**
Non-Hispanic White	521
Black	0
Hispanic	48
Asian	67
Other	0
Native American	0

**Age**
From 65 to 74	226
From 75 to 84	296
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2019

Hypertension	63
High Cholesterol	66
Stroke	3
Ischemic Heart Disease	25
Depression	13
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	7
Diabetes	30
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2020 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

eye procedures	2052
ultrasound (sonogram)	13

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	309
Female	483

**Ethnicity**
Non-Hispanic White	605
Black	13
Hispanic	71
Asian	78
Other	25
Native American	0

**Age**
From 65 to 74	315
From 75 to 84	310
85 and over	154
Less than 65	13

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2020

Hypertension	59
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	25
Depression	14
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	6
Diabetes	29
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2021 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

eye procedures	2203
ultrasound (sonogram)	25

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	306
Female	440

**Ethnicity**
Non-Hispanic White	585
Black	0
Hispanic	61
Asian	66
Other	0
Native American	0

**Age**
From 65 to 74	291
From 75 to 84	307
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2021

Hypertension	62
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	26
Depression	12
Chronic Kidney Disease	30
Asthma	7
Osteoperosis	15
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	30
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA during 2022 were eye procedures, ultrasound (sonogram), capsulotomy and laser treatment.

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

capsulotomy	14
eye procedures	2333
laser treatment	14
ultrasound (sonogram)	35

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	304
Female	449

**Ethnicity**
Non-Hispanic White	591
Black	0
Hispanic	57
Asian	67
Other	0
Native American	0

**Age**
From 65 to 74	269
From 75 to 84	335
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William D. Mosier, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	23
Depression	12
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	21
Atrial Fibrilation	19
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Dementia	4
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William D. Mosier, MD for Medicare patients.

The highest averages for the top procedures that Dr. William D. Mosier, MD treated as an ophthalmologist in Fullerton, CA were eye procedures, diagnostic imaging, ultrasound (sonogram) and capsulotomy.

capsulotomy	13
diagnostic imaging	110
doctor visit	11
eye procedures	2571
laser treatment	13
ultrasound (sonogram)	86

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William D. Mosier, MD.

**Gender**
Male	399
Female	594

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	80
Non-Hispanic White	797
Hispanic	76
Native American / Alaskan Native	0
Other	14

**Age**
75 to 84	403
85 and over	130
Less than 65	13
65 to 74	378

Average of Total of Conditions of Medicare patients treated by Dr. William D. Mosier, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William D. Mosier, MD treated were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	58
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	23
Depression	12
Chronic Kidney Disease	23
Asthma	7
Osteoporosis	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	6
Diabetes	28
Atrial Fibrillation	12
Cancer	10
Dementia	6

Education & Training

Dr. William D. Mosier, MD graduated from National Autonomous University of Honduras Faculty of Medical Sciences in 1982. He completed residency at University of California, Irvine Affiliated Hospitals. He is certified by the American Board of Ophthalmology, Ophthalmology and has a state license in California.

Medical School: National Autonomous University of Honduras Faculty of Medical Sciences (1982)

Residency: University of California, Irvine Affiliated Hospitals

Board Certification: American Board of Ophthalmology, Ophthalmology

Licensed In: California

Affiliations & Hospitals

Dr. William D. Mosier, MD is associated with these hospitals and organizations:

Providence

Providence Medical Foundation

Providence St. Jude Medical Center

St. Jude Medical Center (Fullerton)

Providence Affiliated Physicians, St. Jude

WILLIAM D MOSIER MD INC A PROFESSIONAL MEDICAL CORPORATION

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. William D. Mosier, MD appears to accept the following insurance providers: Anthem Blue Cross HMO, Aetna HMO, Blue Shield of California, United Healthcare HMO, Anthem, Medicare Advantage, Providence, Health Net HMO and CIGNA HMO.

Insurance Accepted by Provider includes:

According to our sources, Dr. William D. Mosier, MD accepts the following insurance providers:

Anthem Blue Cross HMO

Aetna HMO

Blue Shield of California

United Healthcare HMO

Anthem

Medicare Advantage

Providence

Health Net HMO

CIGNA HMO

Ratings & Reviews

Dr. William D. Mosier, MD has a high overall rating with an average of 3.5 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. William D. Mosier, MD from all over the web to help you find the right in Fullerton, CA.

3.5

Overall Rating

(4 Ratings)

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General Payments

These charts describe general payments received by Dr. William D. Mosier, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Sun Pharmaceutical Industries Inc.	$1,233 CEQUA $605	Bromsite $552	BromSite (bromfenac ophthalmic solution) 0.075% $45	XELPROS $31
Allergan Inc.	$984 LUMIGAN $386	RESTASIS $179	COMBIGAN $49	ACZONE $25	BOTOX $4	Other $340
Alcon Laboratories Inc	$818 IOL $588	Simbrinza $93	Ilevro $63	Pazeo $20	AcrySof $15	Other $38
Allergan, Inc.	$324 LUMIGAN $183	RESTASIS MULTIDOSE $95	VUITY $26	RESTASIS $17	ALPHAGAN P $3
AbbVie Inc.	$192 RESTASIS MULTIDOSE $74	VUITY $55	LUMIGAN $35	ALPHAGAN P $29
Other	$815 TEPEZZA $103	EYSUVIS $71	TYRVAYA $51	Rhopressa $48	P200TxE $47	Other $495

**Types of Payments**
Food and Beverage	$3,993
Travel and Lodging	$318
Entertainment	$47
Education	$7

Biography

Dr. William Mosier is a physician who specializes in general ophthalmology. Dr. Mosier has a 3.5 out of 5 star average patient rating. His areas of expertise include nystagmus, ectropion (outward-turned eyelid), and eye floater. He is affiliated with Providence Medical Foundation. He can take several insurance carriers, including United Healthcare HMO, Anthem, and Blue California. Dr. Mosier welcomes new patients at his office inFullerton, CA as reported by Providence Medical Foundation. After attending Kharkiv National Medical University, the University of California, Irvine, School of Medicine, and National Autonomous University of Honduras Faculty of Medical Sciences for medical school, he completed his residency training at a hospital affiliated with the University of California, Irvine.