Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > OR Providers > Retina Specialists

Dr. Sirichai Pasadhika, MD

Accepting New Patients

(302 Ratings)

Specializes in: Uveitis and Ocular Immunology and Vitreoretinal Diseases (Retina and Vitreous)

Chulalongkorn University Faculty of Medicine

1040 Nw 22nd Avenue Medical Office Building 2, Suite 200, First Floor
Portland, OR 97210

(503) 413-8202

Dr. Sirichai Pasadhika, MD is an ocular immunologist in Portland, OR specializing in uveitis and ocular immunology and vitreoretinal diseases (retina and vitreous). He graduated from Chulalongkorn University Faculty of Medicine. Dr. Sirichai Pasadhika, MD is affiliated with Legacy Good Samaritan Medical Center, Legacy Emanuel Medical Center, Legacy Health, LEGACY GOOD SAMARITAN HOSPITAL AND MEDICAL CENTER, Devers Eye Institute and Legacy Good Samaritan Hospital.

Office Locations

1040 Nw 22nd Avenue Medical Office Building 2, Suite 200, First Floor
Portland, OR 97210

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Sirichai Pasadhika, MD in 2023

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

Top 5%

By Volume:

diagnostic B-scan

By Affordability:

B-scan

diagnostic B-scan

diagnostic imaging

ophthalmic ultrasound

In 2023, among providers in related specialties within Oregon, Dr. Sirichai Pasadhika, MD performed more diagnostic B-scan procedures for Medicare patients than 95% of them and he also had a list price for B-scan, diagnostic B-scan, diagnostic imaging, and ophthalmic ultrasound that was lower than the list prices billed to Medicare by 95% 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:

SCODI of the posterior segment

In 2013, Dr. Sirichai Pasadhika, MD performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 75% of providers in related specialties within Oregon.

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2014 were eye procedures and injections.

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

eye procedures	183
injections	39

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	17
Female	31

**Age**
From 65 to 74	24
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2014

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2014 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	60
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	25
Depression	0
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	23
Heart Failure	27
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2015 were eye procedures and injections.

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

eye procedures	509
injections	87

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	78
Female	132

**Ethnicity**
Non-Hispanic White	180
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	50
85 and over	44
Less than 65	34

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2015

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2015 were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	58
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	10
Diabetes	30
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2016 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	27
doctor visit	235
eye procedures	1169
injections	269
ultrasound (sonogram)	27

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	117
Female	146

**Ethnicity**
Non-Hispanic White	216
Black	17
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	69
85 and over	62
Less than 65	38

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2016

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2016 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	59
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	37
Asthma	12
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	10
Diabetes	41
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2017 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	34
doctor visit	544
eye procedures	1455
injections	392
ultrasound (sonogram)	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	140
Female	162

**Ethnicity**
Non-Hispanic White	247
Black	18
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	80
85 and over	78
Less than 65	50

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2017

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2017 were hypertension, diabetes, chronic kidney disease and high cholesterol.

Hypertension	58
High Cholesterol	35
Stroke	5
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	37
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	9
Diabetes	40
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2018 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	55
doctor visit	638
eye procedures	1429
injections	442
ultrasound (sonogram)	55

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	146
Female	155

**Ethnicity**
Non-Hispanic White	245
Black	0
Hispanic	20
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	81
85 and over	64
Less than 65	36

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2018

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2018 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	57
High Cholesterol	40
Stroke	4
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	35
Asthma	4
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	37
Dementia	9
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2019 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	48
doctor visit	792
eye procedures	1618
injections	521
ultrasound (sonogram)	48

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	159
Female	179

**Ethnicity**
Non-Hispanic White	274
Black	19
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	104
85 and over	67
Less than 65	45

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2019

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2019 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	57
High Cholesterol	44
Stroke	7
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	37
Asthma	7
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	8
Diabetes	38
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2020 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	31
doctor visit	633
eye procedures	1347
injections	478
ultrasound (sonogram)	31

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	128
Female	155

**Ethnicity**
Non-Hispanic White	229
Black	11
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	88
85 and over	58
Less than 65	35

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2020

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2020 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	56
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	32
Depression	23
Chronic Kidney Disease	39
Asthma	6
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	6
Diabetes	36
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2021 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	33
doctor visit	827
eye procedures	1633
injections	561
ultrasound (sonogram)	33

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	154
Female	175

**Ethnicity**
Non-Hispanic White	268
Black	0
Hispanic	23
Asian	13
Other	11
Native American	0

**Age**
From 65 to 74	131
From 75 to 84	93
85 and over	73
Less than 65	32

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2021

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2021 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	58
High Cholesterol	42
Stroke	6
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	20
Chronic Obstructive Pulmonary Disease	7
Diabetes	34
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	30
doctor visit	896
eye procedures	1583
injections	523
ultrasound (sonogram)	30

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	140
Female	193

**Ethnicity**
Non-Hispanic White	267
Black	14
Hispanic	25
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	95
85 and over	66
Less than 65	31

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2022

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2022 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	69
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	28
Asthma	13
Osteoperosis	16
Atrial Fibrilation	18
Heart Failure	19
Chronic Obstructive Pulmonary Disease	10
Diabetes	35
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR during 2023 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

diagnostic imaging	22
doctor visit	896
eye procedures	1533
injections	514
ultrasound (sonogram)	22

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	132
Female	192

**Ethnicity**
Non-Hispanic White	252
Black	16
Hispanic	27
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	97
85 and over	57
Less than 65	26

Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD in 2023

The most common conditions of Medicare patients that Dr. Sirichai Pasadhika, MD treated during 2023 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	69
High Cholesterol	66
Stroke	9
Ischemic Heart Disease	26
Depression	19
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	18
Atrial Fibrilation	17
Heart Failure	14
Chronic Obstructive Pulmonary Disease	6
Diabetes	32
Dementia	5
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2023

Volume of procedures performed by Dr. Sirichai Pasadhika, MD for Medicare patients.

The highest averages for the top procedures that Dr. Sirichai Pasadhika, MD treated as an ocular immunologist in Portland, OR were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

diagnostic imaging	35
doctor visit	682
eye procedures	1245
injections	382
ultrasound (sonogram)	35

Average Medicare Patient Data From 2014 - 2023

Information about Medicare patients treated by Dr. Sirichai Pasadhika, MD.

**Gender**
Male	121
Female	152

**Ethnicity**
Black / African American	9
Asian / Pacific Islander	5
Non-Hispanic White	217
Native American / Alaskan Native	0
Hispanic	16
Other	1

**Age**
75 to 84	75
85 and over	56
Less than 65	32
65 to 74	105

Average of Total of Conditions of Medicare patients treated by Dr. Sirichai Pasadhika, MD From 2014 - 2023

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

Hypertension	60
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	30
Depression	19
Chronic Kidney Disease	32
Asthma	6
Osteoporosis	8
Heart Failure	20
Chronic Obstructive Pulmonary Disease	7
Diabetes	36
Atrial Fibrillation	14
Cancer	9
Dementia	6

Education & Training

Dr. Sirichai Pasadhika, MD graduated from Chulalongkorn University Faculty of Medicine. He completed residency at University of Arizona Affiliated Hospitals. He is certified by the Uveitis and has a state license in Oregon.

Medical School: Chulalongkorn University Faculty of Medicine

Residency: University of Arizona Affiliated Hospitals

Board Certification: Uveitis

Licensed In: Oregon

Affiliations & Hospitals

Dr. Sirichai Pasadhika, MD is associated with these hospitals and organizations:

Legacy Good Samaritan Medical Center

Legacy Emanuel Medical Center

Legacy Health

LEGACY GOOD SAMARITAN HOSPITAL AND MEDICAL CENTER

Devers Eye Institute

Legacy Good Samaritan Hospital

Ratings & Reviews

Dr. Sirichai Pasadhika, MD has an exceptional overall rating with an average of 4.74 out of 5 stars based on 302 ratings. We collect ratings and reviews of Dr. Sirichai Pasadhika, MD from all over the web to help you find the right in Portland, OR.

4.74

Overall Rating

(302 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 4.0 2025-02-02

Patient verified via Press Ganey

Getting an appointment was very difficult. Once at the appointment, I received exceptional care from all the doctors, nurses, and technicians I interacted with. I felt like my doctor has the expertise needed to deal with my problem and he seems to be approaching it thoroughly. I also want you to know that the person who drew my blood at the lab was extremely helpful and caring.

Overall Rating: 5.0 2025-04-22

Patient verified via Press Ganey

Dr. Pasadhika has been really working with me to get me my appointments and to talk about the possibility of surgery.

Overall Rating: 5.0 2025-01-21

Patient verified via Press Ganey

Dr Pasadhika is very knowledgeable, efficient and answers all my health questions in a way I can understand.

Overall Rating: 5.0 2024-12-19

Patient verified via Press Ganey

Everyone is professional, attentive and caring

Overall Rating: 5.0 2024-11-07

Patient verified via Press Ganey

Excellent and extremely thorough, respectful

Overall Rating: 5.0 2025-06-19

Patient verified via Press Ganey

The care is excellent

General Payments

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

**Payments by Company**
Horizon Therapeutics plc	$3,000 TEPEZZA $3,000
EyePoint Pharmaceuticals US, Inc.	$1,689 YUTIQ $1,689
Regeneron Healthcare Solutions, Inc.	$752 Eylea $417	EYLEA aflibercept injection $315	EYLEA HD $20
Allergan Inc.	$526 OZURDEX $410	$116
Genentech USA, Inc.	$280 VABYSMO $150	LUCENTIS $130
Other	$1,102 EYLEA aflibercept injection $173	ORA $146	Humira $115	STELLARIS PC $105	MIEBO $102	Other $461

**Types of Payments**
Honoraria	$3,000
Food and Beverage	$2,647
Consulting Fee	$1,620
Gift	$39
Travel and Lodging	$23
Other	$20

Research Payments

Dr. Sirichai Pasadhika, MD has received 8 research payments totaling $36,350.

Biography

Dr. Sirichai Pasadhika practices vitreoretinal diseases (retina and vitreous) and uveitis and ocular immunology in Portland, OR. Dr. Pasadhika is rated 5.0 stars (out of 5) by his patients. He is a graduate of Chulalongkorn University Faculty of Medicine. He completed his residency training at a hospital affiliated with the University of Arizona. Dr. Pasadhika (or staff) speaks Thai. He also offers interpreting services for his patients. Dr. Pasadhika is professionally affiliated with Legacy Emanuel Medical Center and Legacy Good Samaritan Medical Center. According to Legacy Health, new patients are welcome to contact his office in Portland, OR.