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Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS

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Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

Baylor College of Medicine

Professional interests include: retina problems (vitreoretinal diseases)

200 Ogletree Drive
Livingston, TX 77351

(713) 799-9975

Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS is a retina specialist in Livingston, TX specializing in vitreoretinal diseases (retina and vitreous). He graduated from Baylor College of Medicine. Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS is affiliated with Texas Children's, Baylor College of Medicine, Methodist Hospital, CHI St. Luke's Health - Baylor St. Luke's Medical Center, Astrana Health, Memorial Hermann Children's Hospital, Retina & Vitreous of Texas - Houston, RETINA & VITREOUS OF TEXAS PLLC, Memorial Hermann Hospital and GTPA.

Office Locations

Retina & Vitreous of Texas - Houston

200 Ogletree Drive
Livingston, TX 77351

(713) 799-9975

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2727 Gramery Street Suite 200
Houston, TX 77025

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2734 Sunrise Boulevard Suite 303
Pearland, TX 77584

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GTPA

350 Pine Street Suite 330
Beaumont, TX 77701

(713) 799-9975

(713) 799-1095

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6565 West Loop South 4th Floor
Bellaire, TX 77401

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750 Westgreen Boulevard Suite 250
Katy, TX 77450

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Neurosensory Center (lab) Room: Neur-205
Houston, TX 77030

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Noteworthy Medicare Patient Procedures Performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2023

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

Top 10%

By Volume:

diagnostic B-scan

SCODI of the posterior segment

By Affordability:

B-scan

diagnostic B-scan

diagnostic imaging

In 2023, among providers in related specialties within Texas, Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS performed more diagnostic B-scan, and SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 90% of them and he also had a list price for B-scan, diagnostic B-scan, and diagnostic imaging that was lower than the list prices billed to Medicare by 90% of them. 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.

Top 25%

By Volume:

eye procedures

By Affordability:

fundus photography

In 2012, among providers in related specialties within Texas, Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS performed more eye procedures procedures for Medicare patients than 75% of them and he also had a list price for fundus photography that was lower than the list prices billed to Medicare by 75% of them. 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. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2012 were eye procedures and injections.

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

doctor visit	46
eye procedures	278
injections	57

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2013 were eye procedures and injections.

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

doctor visit	109
eye procedures	841
injections	124

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	114
Female	168

**Ethnicity**
Non-Hispanic White	237
Black	26
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	89
85 and over	64
Less than 65	31

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2013

Hypertension	74
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	46
Depression	16
Chronic Kidney Disease	28
Asthma	6
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	26
Chronic Obstructive Pulmonary Disease	16
Diabetes	40
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2014 were eye procedures and injections.

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

doctor visit	245
eye procedures	2500
injections	483

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	180
Female	220

**Ethnicity**
Non-Hispanic White	338
Black	34
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	137
85 and over	95
Less than 65	37

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2014

Hypertension	75
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	45
Depression	19
Chronic Kidney Disease	30
Asthma	5
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	28
Chronic Obstructive Pulmonary Disease	14
Diabetes	46
Dementia	12
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2015 were eye procedures, injections, photocoagulation and phototherapy (light therapy).

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	17
doctor visit	223
eye procedures	3707
injections	683
photocoagulation	33
phototherapy (light therapy)	26
ultrasound (sonogram)	17

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	502
Female	582

**Ethnicity**
Non-Hispanic White	904
Black	98
Hispanic	46
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	376
From 75 to 84	366
85 and over	232
Less than 65	110

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2015

Hypertension	75
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	44
Depression	14
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	42
Dementia	13
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2016 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	18
doctor visit	705
eye procedures	3781
injections	868
photocoagulation	30
ultrasound (sonogram)	18

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	279
Female	337

**Ethnicity**
Non-Hispanic White	490
Black	69
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	214
85 and over	135
Less than 65	56

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2016

Hypertension	75
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	43
Depression	13
Chronic Kidney Disease	33
Asthma	15
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	40
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2017 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	29
doctor visit	433
eye procedures	4646
injections	909
photocoagulation	37
phototherapy (light therapy)	12
ultrasound (sonogram)	29

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	301
Female	348

**Ethnicity**
Non-Hispanic White	541
Black	47
Hispanic	0
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	228
From 75 to 84	238
85 and over	142
Less than 65	41

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2017

Hypertension	75
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	42
Depression	14
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	15
Diabetes	40
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2018 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	49
doctor visit	214
eye procedures	4652
injections	846
ultrasound (sonogram)	49

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	327
Female	360

**Ethnicity**
Non-Hispanic White	553
Black	55
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	244
85 and over	135
Less than 65	54

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2018

Hypertension	75
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	41
Depression	16
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	15
Diabetes	39
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2019 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	63
doctor visit	230
eye procedures	5377
injections	1026
photocoagulation	12
ultrasound (sonogram)	63

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	342
Female	384

**Ethnicity**
Non-Hispanic White	568
Black	63
Hispanic	46
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	320
From 75 to 84	239
85 and over	124
Less than 65	43

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2019

Hypertension	75
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	41
Depression	16
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	21
Chronic Obstructive Pulmonary Disease	15
Diabetes	38
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2020 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	141
doctor visit	228
eye procedures	4746
injections	984
photocoagulation	18
ultrasound (sonogram)	141

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	341
Female	383

**Ethnicity**
Non-Hispanic White	567
Black	66
Hispanic	38
Asian	41
Other	0
Native American	0

**Age**
From 65 to 74	302
From 75 to 84	244
85 and over	136
Less than 65	42

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2020

Hypertension	75
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	43
Depression	18
Chronic Kidney Disease	37
Asthma	5
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	38
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2021 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	164
doctor visit	151
eye procedures	4845
injections	1031
photocoagulation	13
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	164

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	326
Female	404

**Ethnicity**
Non-Hispanic White	573
Black	59
Hispanic	38
Asian	45
Other	0
Native American	0

**Age**
From 65 to 74	318
From 75 to 84	235
85 and over	133
Less than 65	44

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2021

Hypertension	75
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	43
Depression	16
Chronic Kidney Disease	39
Asthma	7
Osteoperosis	14
Atrial Fibrilation	11
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

diagnostic imaging	198
doctor visit	909
eye procedures	4030
injections	1020
ultrasound (sonogram)	198

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	316
Female	402

**Ethnicity**
Non-Hispanic White	572
Black	50
Hispanic	32
Asian	46
Other	0
Native American	0

**Age**
From 65 to 74	317
From 75 to 84	254
85 and over	116
Less than 65	31

Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	34
Depression	15
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	18
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	38
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS for Medicare patients.

The highest averages for the top procedures that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated as a retina specialist in Livingston, TX were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

diagnostic imaging	84
doctor visit	317
eye procedures	3582
injections	730
photocoagulation	23
phototherapy (light therapy)	19
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	84

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

**Gender**
Male	275
Female	326

**Ethnicity**
Black / African American	51
Asian / Pacific Islander	17
Non-Hispanic White	485
Native American / Alaskan Native	0
Hispanic	26
Other	0

**Age**
75 to 84	205
85 and over	119
Less than 65	44
65 to 74	232

Average of Total of Conditions of Medicare patients treated by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	68
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	38
Depression	14
Chronic Kidney Disease	30
Asthma	6
Osteoporosis	10
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	36
Atrial Fibrillation	11
Dementia	10
Cancer	10

Education & Training

Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS graduated from Baylor College of Medicine. He completed residency at Baylor College of Medicine Affiliated Hospitals. He is certified by the Certification: THE AMERICAN BOARD OF OPHTHALMOLOGY and has a state license in Texas.

Medical School: Baylor College of Medicine

Residency: Baylor College of Medicine Affiliated Hospitals

Board Certification: Certification: THE AMERICAN BOARD OF OPHTHALMOLOGY

Licensed In: Texas

Affiliations & Hospitals

Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS is associated with these hospitals and organizations:

Texas Children's

Baylor College of Medicine

Methodist Hospital

CHI St. Luke's Health - Baylor St. Luke's Medical Center

Astrana Health

Memorial Hermann Children's Hospital

Retina & Vitreous of Texas - Houston

RETINA & VITREOUS OF TEXAS PLLC

Memorial Hermann Hospital

GTPA

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General Payments

These charts describe general payments received by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Genentech USA, Inc.	$140,144 VABYSMO $62,562	LUCENTIS $49,865	Non-Covered Product $6,178	SUSVIMO $424	$21,114
Allergan Inc.	$26,287 OZURDEX $25,380	LUMIGAN $270	NATRELLE IMPLANTS $149	$489
Novartis Pharmaceuticals Corporation	$20,044 BEOVU $19,936	Durezol $16	$92
Bausch & Lomb Americas Inc.	$12,140 OPHTHALMIC INSTRUMENTS $9,152	STELLARIS $2,755	XIPERE $199	VISUDYNE $18	LOTEMAX SM $16
Regeneron Healthcare Solutions, Inc.	$11,656 EYLEA HD $9,897	Eylea $1,684	EYLEA (aflibercept) Injection $63	EYLEA aflibercept injection $13
Other	$24,781 Vitesse $8,603	ILUVIEN $4,548	Eylea $3,858	OZURDEX $463	Non-Covered Product $405	Other $6,904

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$98,174
Consulting Fee	$79,468
Travel and Lodging	$28,757
Food and Beverage	$19,116
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$7,500
Other	$2,037

Research Payments

Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS has received 179 research payments totaling $3,149,635.

Ownership and Interest Payments

This table describes ownership payments received by Dr. Emmanuel Yih-Herng Chang, MD, PhD, FACS, BS.

US Retina LLC	2022	$5,000.00	Physician Covered Recipient	Shares
US Retina LLC	2018	$5,000.00	Physician Covered Recipient	Shares
US Retina LLC	2020	$5,000.00	Physician Covered Recipient	Shares
US Retina LLC	2017	$5,000.00	Physician Covered Recipient	Shares
US Retina LLC	2019	$5,000.00	Physician Covered Recipient	Shares
US Retina LLC	2016	$5,000.00	Physician Covered Recipient	Shares
US Retina LLC	2015	$5,000.00	Physician Covered Recipient	Shares

Biography

Dr. Emmanuel Chang sees patients in Houston, TX, Livingston, TX, and Pearland, TX. His medical specialty is vitreoretinal diseases (retina and vitreous). He has indicated that his clinical interests include surgical procedures and retina problems (vitreoretinal diseases). Dr. Chang's professional affiliations include Texas Children's, Astrana Health, and CHI St. Luke's Health - Baylor St. Luke's Medical Center. Astrana Health reports that he is accepting new patients at his office in BEAUMONT, TX. Before performing his residency at a hospital affiliated with Baylor College of Medicine, Dr. Chang attended Baylor College of Medicine for medical school. Dr. Chang has received professional recognition including the following: The nation s highest honor given to a retina surgical fellow.; Ron G. Michels Fellowship; and Chief Resident, Baylor College of Medicine. Dr. Chang (or staff) speaks Mandarin and Spanish.