Brian Tsi-Wah Chan-Kai, M.D.
Retina Specialist (Ophthalmology) Physician · Portland, OR
Brian Tsi-Wah Chan-Kai, M.D. is a retina specialist (ophthalmology) physician with a practice address in Portland, Oregon, and NPI 1578690566, issued on Feb 27, 2007. Check the license (Oregon MD27367, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Tsi-Wah Chan-Kai
- Credential
- M.D.
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- MD27367 OR
Self-reported in NPPES; status is on the state search - Practice location
- 10819 SE Stark St, Portland, OR 97216
- Phone
- (503) 255-2291
- Enumerated
- Feb 27, 2007
- Record last updated
- Feb 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (503) 252-1797
- Medicaid ID
- 006205 OR
- Medicare enrollment
- Enrolled (PECOS I20070906000018); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2003
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 36 in Oregon → Look up another NPI →
Also registered at 10819 SE Stark St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Francisco Castillo, MDOphthalmic Plastic and Reconstructive Surgery Physician1831320233
- Ronald Hampel, ODOptometrist1639151723
- Mary Hauptmann, MDOphthalmology Physician1801878996
- Daniel Holland, MDOphthalmology Physician1649252685
- Matthew Kaufman, M.D.Ophthalmology Physician1700014503
- Jonathan Kemp, MDOphthalmology Physician1245212901
Verify Brian Tsi-Wah Chan-Kai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD27367Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
307 Medicare Part D claims for 122 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Prednisolone Acetate104 claims
- Moxifloxacin46 claims
- Diclofenac Sodium20 claims
- Latanoprost19 claims
- Ketorolac Tromethamine18 claims
- Timolol Maleate16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 92.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $39,540.40
41 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Eye Health Northwest PCMilwaukie, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Tsi-Wah Chan-Kai among 36 retina specialist (ophthalmology) physician records in Oregon
Brian Tsi-Wah Chan-Kai, M.D. is one of 36 retina specialist (ophthalmology) physician records with a practice address in Oregon. 100% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 50% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileYes · 97% of these records are
- Graduated2003 · median 2006 among the 35 with a school on file
- Record last updated2021 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in Oregon
There are 36 retina specialist (ophthalmology) physician records in Oregon.
All 36 in Oregon → Every provider in Portland → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Jonathan Yoken, MDPortland, OR 972161902804081
- Michael Lee, M.D.Portland, OR 972211215932033
- Apurva Patel, MDPortland, OR 972211073770707
- Harpal Sandhu, MDPortland, OR 972211811204894
- Paul Tlucek, MDPortland, OR 972211982800470
- Wenlan Zhang, MDPortland, OR 972211982961405
- Colin Ma, M.D.Portland, OR 972101164427308
- Aristomenis Thanos, M.DPortland, OR 972101275820714
Common questions
What is Brian Tsi-Wah Chan-Kai, M.D.'s NPI number?
Brian Tsi-Wah Chan-Kai, M.D.'s National Provider Identifier (NPI) is 1578690566, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brian Tsi-Wah Chan-Kai, M.D. located?
The NPPES record lists a practice address at 10819 SE Stark St, Portland, OR, 97216. Phone: (503) 255-2291. Providers update this record themselves, so call before visiting.
How can I verify Brian Tsi-Wah Chan-Kai, M.D.'s license?
NPPES lists Oregon license number MD27367, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Tsi-Wah Chan-Kai, M.D. prescribe under Medicare Part D?
In 2024, Brian Tsi-Wah Chan-Kai, M.D. had 307 Medicare Part D claims for 122 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Brian Tsi-Wah Chan-Kai, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.