Colin Ma, M.D.
Retina Specialist (Ophthalmology) Physician · Portland, OR
Colin Ma, M.D. is a retina specialist (ophthalmology) physician with a practice address in Portland, Oregon, and NPI 1164427308, issued on Jun 15, 2005. Check the license (Oregon MD15274, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Colin Ma
- Credential
- M.D.
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License numbers
- MD15274 OR
MD00028055 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2525 NW Lovejoy St, Portland, OR 97210
- Phone
- (503) 274-2121
- Enumerated
- Jun 15, 2005
- Record last updated
- Apr 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 36 in Oregon → Look up another NPI →
Also registered at 2525 NW Lovejoy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Birk, M.D.Pediatrics Physician1619973856
- Pilar Buerk, MDPediatric Physical Therapist1225034580
- Elizabeth Carr, M.D.Pediatrics Physician1982600649
- Justine Cosman, PT, DPTPhysical Therapist1306191663
- Richard Dreyer, M.D.Ophthalmology Physician1255336491
- Mari Kay Evans-Smith, MDPediatrics Physician1528064896
Verify Colin Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD15274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 79.9 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).
Colin Ma among 36 retina specialist (ophthalmology) physician records in Oregon
Colin Ma, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 83% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileNo · 97% of these records are
- 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
- Aristomenis Thanos, M.DPortland, OR 972101275820714
- Brian Chan-Kai, M.D.Portland, OR 972161578690566
- 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
Common questions
What is Colin Ma, M.D.'s NPI number?
Colin Ma, M.D.'s National Provider Identifier (NPI) is 1164427308, issued on Jun 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Colin Ma, M.D. located?
The NPPES record lists a practice address at 2525 NW Lovejoy St, Portland, OR, 97210. Phone: (503) 274-2121. Providers update this record themselves, so call before visiting.
How can I verify Colin Ma, M.D.'s license?
NPPES lists Oregon license number MD15274, 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.
What is Colin Ma, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.9 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.