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Home > CA Providers > Ophthalmologists

Dr. Rex Chen Hsei, MD

Accepting New Patients

(8 Ratings)

Specializes in: Ophthalmology (Eye Disease)

MCP Hahnemann School of Medicine

150 Carnation Drive Suite 2
Freedom, CA 95019

(831) 761-5488

Dr. Rex Chen Hsei, MD is an ophthalmologist in Watsonville, CA specializing in ophthalmology (eye disease). He graduated from MCP Hahnemann School of Medicine. Dr. Rex Chen Hsei, MD is affiliated with Dignity Health, Dominican Hospital Santa Cruz and DHMN - Santa Cruz DHMN - Ventura.

Office Locations

1489 Main Street #101
Watsonville, CA 95076

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DHMN - Santa Cruz DHMN - Ventura

150 Carnation Drive Suite 2
Freedom, CA 95019

(831) 761-5488

(831) 761-5487

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1665 Dominican Way Suite 124
Santa Cruz, CA 95065

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Noteworthy Medicare Patient Procedures Performed by Dr. Rex Chen Hsei, MD in 2023

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

Top 10%

By Volume:

extracapsular cataract extraction with IOL implantation

In 2023, Dr. Rex Chen Hsei, MD performed more extracapsular cataract extraction (ECCE) with IOL implantation procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

anterior segment surgery

eye procedures

By Affordability:

eye tests

laser eye surgery

ophthalmic biometry

secondary cataract surgery

YAG laser capsulotomy

YAG laser surgery

In 2012, among providers in related specialties within California, Dr. Rex Chen Hsei, MD performed more anterior segment surgery, and eye procedures procedures for Medicare patients than 75% of them and he also had a list price for eye tests, laser eye surgery, ophthalmic biometry, secondary cataract surgery, YAG laser capsulotomy, and YAG laser surgery 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. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2012 were eye procedures, laser treatment, capsulotomy and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	162
doctor visit	326
eye procedures	3737
laser treatment	178
ultrasound (sonogram)	29

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2013 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	150
doctor visit	21
eye procedures	3893
laser treatment	150
ultrasound (sonogram)	24

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	595
Female	931

**Ethnicity**
Non-Hispanic White	1033
Black	0
Hispanic	392
Asian	65
Other	24
Native American	0

**Age**
From 65 to 74	627
From 75 to 84	522
85 and over	253
Less than 65	124

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2013

Hypertension	63
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	25
Depression	14
Chronic Kidney Disease	16
Asthma	8
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	8
Diabetes	33
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2014 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	119
eye procedures	3970
laser treatment	119

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	624
Female	991

**Ethnicity**
Non-Hispanic White	1039
Black	0
Hispanic	476
Asian	63
Other	23
Native American	0

**Age**
From 65 to 74	674
From 75 to 84	525
85 and over	275
Less than 65	141

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2014

Hypertension	60
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	25
Depression	15
Chronic Kidney Disease	16
Asthma	7
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	8
Diabetes	34
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2015 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	105
eye procedures	4013
laser treatment	105
ultrasound (sonogram)	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	1256
Female	1962

**Ethnicity**
Non-Hispanic White	2124
Black	0
Hispanic	882
Asian	130
Other	52
Native American	0

**Age**
From 65 to 74	1388
From 75 to 84	1030
85 and over	546
Less than 65	254

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2015

Hypertension	59
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	15
Chronic Obstructive Pulmonary Disease	8
Diabetes	33
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2016 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	110
eye procedures	3850
laser treatment	110
ultrasound (sonogram)	16

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	571
Female	983

**Ethnicity**
Non-Hispanic White	975
Black	0
Hispanic	466
Asian	76
Other	0
Native American	0

**Age**
From 65 to 74	671
From 75 to 84	492
85 and over	256
Less than 65	135

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2016

Hypertension	60
High Cholesterol	47
Stroke	5
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	25
Asthma	12
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	8
Diabetes	37
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2017 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	89
eye procedures	4052
laser treatment	89
ultrasound (sonogram)	23

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	647
Female	1008

**Ethnicity**
Non-Hispanic White	1039
Black	0
Hispanic	502
Asian	69
Other	33
Native American	0

**Age**
From 65 to 74	710
From 75 to 84	546
85 and over	254
Less than 65	145

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2017

Hypertension	59
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	37
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2018 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	107
eye procedures	4337
laser treatment	107
ultrasound (sonogram)	34

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	722
Female	1095

**Ethnicity**
Non-Hispanic White	1145
Black	0
Hispanic	536
Asian	79
Other	43
Native American	0

**Age**
From 65 to 74	789
From 75 to 84	617
85 and over	249
Less than 65	162

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2018

Hypertension	58
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	22
Depression	16
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	36
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2019 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	119
eye procedures	4200
laser treatment	119

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	713
Female	1081

**Ethnicity**
Non-Hispanic White	1117
Black	0
Hispanic	552
Asian	68
Other	0
Native American	0

**Age**
From 65 to 74	788
From 75 to 84	640
85 and over	233
Less than 65	133

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2019

Hypertension	59
High Cholesterol	50
Stroke	3
Ischemic Heart Disease	21
Depression	17
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	11
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	37
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2020 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	99
eye procedures	3428
laser treatment	99

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	568
Female	913

**Ethnicity**
Non-Hispanic White	889
Black	0
Hispanic	472
Asian	56
Other	52
Native American	0

**Age**
From 65 to 74	668
From 75 to 84	519
85 and over	209
Less than 65	85

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2020

Hypertension	57
High Cholesterol	48
Stroke	2
Ischemic Heart Disease	21
Depression	15
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	9
Atrial Fibrilation	6
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	37
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2021 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	142
eye procedures	3870
laser treatment	142
ultrasound (sonogram)	17

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	669
Female	963

**Ethnicity**
Non-Hispanic White	1022
Black	0
Hispanic	468
Asian	72
Other	55
Native American	0

**Age**
From 65 to 74	734
From 75 to 84	577
85 and over	230
Less than 65	91

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2021

Hypertension	62
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	22
Depression	16
Chronic Kidney Disease	27
Asthma	6
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	6
Diabetes	36
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA during 2022 were eye procedures, capsulotomy, laser treatment and ultrasound (sonogram).

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

capsulotomy	98
eye procedures	3726
laser treatment	98
ultrasound (sonogram)	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	646
Female	993

**Ethnicity**
Non-Hispanic White	1050
Black	0
Hispanic	471
Asian	59
Other	0
Native American	0

**Age**
From 65 to 74	739
From 75 to 84	581
85 and over	235
Less than 65	84

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2022

Hypertension	67
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	16
Depression	15
Chronic Kidney Disease	16
Asthma	10
Osteoperosis	16
Atrial Fibrilation	14
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	36
Dementia	4
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Rex Chen Hsei, MD for Medicare patients.

The highest averages for the top procedures that Dr. Rex Chen Hsei, MD treated as an ophthalmologist in Watsonville, CA were eye procedures, laser treatment, capsulotomy and ultrasound (sonogram).

capsulotomy	118
doctor visit	173
eye procedures	3916
laser treatment	119
ultrasound (sonogram)	22

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Rex Chen Hsei, MD.

**Gender**
Male	637
Female	992

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	67
Non-Hispanic White	1039
Native American / Alaskan Native	0
Hispanic	474
Other	25

**Age**
75 to 84	549
85 and over	249
Less than 65	123
65 to 74	708

Average of Total of Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD From 2012 - 2022

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

Hypertension	54
High Cholesterol	46
Stroke	3
Ischemic Heart Disease	20
Depression	14
Chronic Kidney Disease	20
Asthma	7
Osteoporosis	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	32
Atrial Fibrillation	9
Dementia	6
Cancer	7

Education & Training

Dr. Rex Chen Hsei, MD graduated from MCP Hahnemann School of Medicine. He is certified by the Ophthalmology and has a state license in California.

Medical School: MCP Hahnemann School of Medicine

Board Certification: Ophthalmology

Licensed In: California

Affiliations & Hospitals

Dr. Rex Chen Hsei, MD is associated with these hospitals and organizations:

Dignity Health

Dominican Hospital Santa Cruz

DHMN - Santa Cruz DHMN - Ventura

Ratings & Reviews

Dr. Rex Chen Hsei, MD has a high overall rating with an average of 3.5 out of 5 stars based on 8 ratings. We collect ratings and reviews of Dr. Rex Chen Hsei, MD from all over the web to help you find the right in Watsonville, CA.

3.5

Overall Rating

(8 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Alcon Laboratories Inc	$275 Ilevro $201	Pazeo $30	Simbrinza $25	$20
Aerie Pharmaceuticals, Inc.	$207 Rhopressa $207
Abbott Laboratories	$169 Optics $169
Carl Zeiss Meditec, Inc.	$162 IOLMaster 500 $131	VisuMax $32
Novartis Pharmaceuticals Corporation	$121 Travatan Z $109	XIIDRA $12
Other	$546 XIIDRA $98	iSTENT iNJECT TRABECULAR MICRO-BYPASS STENT SYSTEM $51	Bromsite $41	RESTASIS $40	LUMIGAN $39	Other $276

**Types of Payments**
Food and Beverage	$1,386
Education	$75
Gift	$19

Biography

Dr. Rex Hsei's medical specialty is ophthalmology (eye disease). Dr. Hsei speaks Mandarin. He is professionally affiliated with Dignity Health. He is a graduate of MCP Hahnemann School of Medicine. He is rated 3.5 stars (out of 5) by his patients. According to Dignity Health, new patients are welcome to contact Dr. Hsei's office in Watsonville, CA.

Select Year:

Dr. Rex Chen Hsei, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Rex Chen Hsei, MD in 2023

By Volume:

By Volume:

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. Rex Chen Hsei, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Rex Chen Hsei, MD 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. Rex Chen Hsei, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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