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Home > CA Providers > Retina Specialists

Dr. Theodore Leng, FACS, MD, MS

Accepting New Patients

(5 Ratings)

Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

Stanford University School of Medicine

Professional interests include: cataracts, dislocation, intraocular lens (IOL) implant, and more.

15425 Los Gatos Boulevard Suite 120
Los Gatos, CA 95032

(408) 340-5700

Dr. Theodore Leng, FACS, MD, MS is a retina specialist in Los Gatos, CA specializing in vitreoretinal diseases (retina and vitreous). He graduated from Stanford University School of Medicine. Dr. Theodore Leng, FACS, MD, MS is affiliated with Stanford Medicine Children's Health, El Camino Health, Brown and Toland Physicians, Stanford Health Care, Lucile Salter Packard Children's Hospital, Ambulatory Specialties, Stanford Health Care and El Camino Hospital.

Office Locations

El Camino Hospital

15425 Los Gatos Boulevard Suite 120
Los Gatos, CA 95032

(408) 340-5700

open_in_new

Stanford Medicine Children's Health

2452 Watson Court Mc 5353
Palo Alto, CA 94303

(650) 723-6995

(650) 725-6619

open_in_new

El Camino Hospital

27212 Calaroga Avenue
Hayward, CA 94545

(510) 785-5000

open_in_new

300 Pasteur Drive
Palo Alto, CA 94305

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In The News

“This free online event, Thursday, March 7 at 11:30am ET, will feature Dr. Theodore Leng, of Stanford University who is recognized as one of the top 150 worldwide leading innovators in eye care.”—"Virtual Field Announces Webinar Exploring the Latest AI Developments in Ophthalmology with Stanford's Dr. Theodore Leng", FOX 2, March 2024

“Presenting author Theodore Leng, MD, of the Byers Eye Institute at Stanford University in California, explains the results from FARETINA-AMD and its clinical significance.”—"Faricimab for Wet AMD: Real-World Treatment Patterns, Outcomes", MedPage Today, September 2023

Noteworthy Medicare Patient Procedures Performed by Dr. Theodore Leng, FACS, MD, MS in 2023

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

Top 10%

By Volume:

SCODI of the posterior segment

In 2023, Dr. Theodore Leng, FACS, MD, MS performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

eye procedures

intravitreal drug injection

In 2012, Dr. Theodore Leng, FACS, MD, MS performed more eye procedures, and intravitreal drug injection procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2012 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

diagnostic imaging	30
doctor visit	1444
eye procedures	2714
injections	842
ultrasound (sonogram)	30

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2013 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

diagnostic imaging	37
doctor visit	1407
eye procedures	2823
injections	992
ultrasound (sonogram)	37

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	356
Female	417

**Ethnicity**
Non-Hispanic White	487
Black	24
Hispanic	92
Asian	146
Other	24
Native American	0

**Age**
From 65 to 74	287
From 75 to 84	271
85 and over	141
Less than 65	74

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2013

Hypertension	63
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	27
Depression	15
Chronic Kidney Disease	23
Asthma	7
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	39
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2014 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

diagnostic imaging	20
doctor visit	937
eye procedures	3489
injections	1255
ultrasound (sonogram)	20

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	402
Female	426

**Ethnicity**
Non-Hispanic White	513
Black	0
Hispanic	94
Asian	150
Other	36
Native American	0

**Age**
From 65 to 74	329
From 75 to 84	283
85 and over	150
Less than 65	66

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2014

Hypertension	62
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	25
Depression	14
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	5
Diabetes	39
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2015 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

diagnostic imaging	24
doctor visit	1128
eye procedures	3429
injections	1244
ultrasound (sonogram)	24

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	720
Female	892

**Ethnicity**
Non-Hispanic White	992
Black	58
Hispanic	170
Asian	324
Other	68
Native American	0

**Age**
From 65 to 74	610
From 75 to 84	578
85 and over	298
Less than 65	126

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2015

Hypertension	60
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	28
Depression	17
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	7
Diabetes	37
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2016 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

diagnostic imaging	26
doctor visit	839
eye procedures	3770
injections	1110
ultrasound (sonogram)	26

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	390
Female	465

**Ethnicity**
Non-Hispanic White	517
Black	27
Hispanic	88
Asian	193
Other	30
Native American	0

**Age**
From 65 to 74	337
From 75 to 84	283
85 and over	162
Less than 65	73

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2016

Hypertension	61
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	8
Diabetes	35
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2017 were eye procedures and injections.

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

doctor visit	1323
eye procedures	3287
injections	1169

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	381
Female	482

**Ethnicity**
Non-Hispanic White	498
Black	29
Hispanic	87
Asian	201
Other	48
Native American	0

**Age**
From 65 to 74	322
From 75 to 84	296
85 and over	178
Less than 65	67

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2017

Hypertension	62
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	30
Depression	14
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	14
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	7
Diabetes	34
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2018 were eye procedures and injections.

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

doctor visit	1331
eye procedures	3380
injections	1246

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	392
Female	468

**Ethnicity**
Non-Hispanic White	488
Black	24
Hispanic	92
Asian	214
Other	42
Native American	0

**Age**
From 65 to 74	315
From 75 to 84	326
85 and over	158
Less than 65	61

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2018

Hypertension	63
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	31
Depression	14
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	39
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2019 were eye procedures and injections.

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

doctor visit	1291
eye procedures	3507
injections	1253

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	391
Female	515

**Ethnicity**
Non-Hispanic White	486
Black	25
Hispanic	107
Asian	234
Other	54
Native American	0

**Age**
From 65 to 74	349
From 75 to 84	340
85 and over	145
Less than 65	72

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2019

Hypertension	61
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	31
Depression	16
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	15
Chronic Obstructive Pulmonary Disease	7
Diabetes	40
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2020 were eye procedures and injections.

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

doctor visit	1008
eye procedures	2921
injections	1124

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	389
Female	473

**Ethnicity**
Non-Hispanic White	489
Black	31
Hispanic	88
Asian	205
Other	49
Native American	0

**Age**
From 65 to 74	338
From 75 to 84	302
85 and over	157
Less than 65	65

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2020

Hypertension	62
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	32
Depression	16
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	7
Diabetes	47
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2021 were eye procedures and injections.

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

doctor visit	1185
eye procedures	3347
injections	1144

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	449
Female	602

**Ethnicity**
Non-Hispanic White	579
Black	34
Hispanic	103
Asian	260
Other	75
Native American	0

**Age**
From 65 to 74	412
From 75 to 84	394
85 and over	183
Less than 65	62

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2021

Hypertension	61
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	34
Depression	16
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	17
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	6
Diabetes	45
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA during 2022 were eye procedures and injections.

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

doctor visit	1343
eye procedures	3222
injections	1165

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	474
Female	594

**Ethnicity**
Non-Hispanic White	607
Black	0
Hispanic	93
Asian	248
Other	88
Native American	0

**Age**
From 65 to 74	402
From 75 to 84	409
85 and over	192
Less than 65	65

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2022

Hypertension	70
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	21
Atrial Fibrilation	17
Heart Failure	14
Chronic Obstructive Pulmonary Disease	8
Diabetes	45
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Theodore Leng, FACS, MD, MS for Medicare patients.

The highest averages for the top procedures that Dr. Theodore Leng, FACS, MD, MS treated as a retina specialist in Los Gatos, CA were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

diagnostic imaging	27
doctor visit	1203
eye procedures	3262
injections	1140
ultrasound (sonogram)	27

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS.

**Gender**
Male	394
Female	484

**Ethnicity**
Black / African American	22
Asian / Pacific Islander	197
Non-Hispanic White	514
Hispanic	92
Native American / Alaskan Native	0
Other	46

**Age**
75 to 84	316
85 and over	160
Less than 65	66
65 to 74	336

Average of Total of Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Theodore Leng, FACS, MD, MS treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	56
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	26
Depression	13
Chronic Kidney Disease	27
Asthma	7
Osteoporosis	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	36
Atrial Fibrillation	10
Cancer	11
Dementia	6

Education & Training

Dr. Theodore Leng, FACS, MD, MS graduated from Stanford University School of Medicine. He completed residency at Bascom Palmer Eye Institute. He is certified by the American Board of Ophthalmology, Ophthalmology and has a state license in California.

Medical School: Stanford University School of Medicine

Residency: Bascom Palmer Eye Institute

Board Certification: American Board of Ophthalmology, Ophthalmology

Licensed In: California

Affiliations & Hospitals

Dr. Theodore Leng, FACS, MD, MS is associated with these hospitals and organizations:

Stanford Medicine Children's Health

El Camino Health

Brown and Toland Physicians

Stanford Health Care

Lucile Salter Packard Children's Hospital

Ambulatory Specialties, Stanford Health Care

El Camino Hospital

Ratings & Reviews

Dr. Theodore Leng, FACS, MD, MS has an exceptional overall rating with an average of 5.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Theodore Leng, FACS, MD, MS from all over the web to help you find the right in Los Gatos, CA.

Overall Rating

(5 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Theodore Leng, FACS, MD, MS. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Alcon Vision LLC	$33,118 Constellation $17,873	Alcon Greishaber Finesse $11,322	$3,923
Genentech, Inc.	$27,938 LUCENTIS $1,668	Non-Covered Product $1,636	VABYSMO $120	$24,515
F. Hoffmann-La Roche AG	$22,509 LUCENTIS $7,750	Non-Covered Product $40	$14,719
Regeneron Healthcare Solutions, Inc.	$20,837 Eylea $20,604	EYLEA HD $144	EYLEA aflibercept injection $49	EYLEA (aflibercept) Injection $40
Carl Zeiss Meditec, Inc.	$15,642 CIRRUS HD-OCT $10,344	Cirrus HD OCT High Definition Optical Coherence Tomographer $2,050	Connectivity Forum $1,678	CLARUS 500 Fundus Camera $1,500	$70
Other	$44,365 EYLEA (aflibercept) Injection $6,762	LUCENTIS $4,448	VABYSMO $3,626	VISUDYNE $2,009	YUTIQ $1,642	Other $25,877

**Types of Payments**
Consulting Fee	$139,562
Travel and Lodging	$6,756
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$6,594
Food and Beverage	$6,350
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$3,128
Other	$2,019

Research Payments

Dr. Theodore Leng, FACS, MD, MS has received 26 research payments totaling $298,367.

Biography

Dr. Theodore Leng's area of specialization is vitreoretinal diseases (retina and vitreous). The average patient rating for Dr. Leng is 5.0 stars (out of 5). His clinical interests include macular degeneration, retinal vein occlusion, and macular hole. After completing medical school at Stanford University School of Medicine, he performed his residency at Bascom Palmer Eye Institute. He has received professional recognition including the following: Achievement Award, American Academy of Ophthalmology; AMA Travel Award, American Medical Association; and America's Top Ophthalmologists, Consumers Research Council of America. Dr. Leng is conversant in Spanish. He is affiliated with El Camino Health, Brown and Toland Physicians, and Stanford Medicine Children's Health. He has an open panel in PALO ALTO, CA according to El Camino Health.

Select Year:

Dr. Theodore Leng, FACS, MD, MS

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. Theodore Leng, FACS, MD, MS in 2023

By Volume:

By Volume:

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. Theodore Leng, FACS, MD, MS in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Theodore Leng, FACS, MD, MS From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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