2026 NPPES data Ophthalmology Physician NPI 1164427308 M.D.
Verify on CMS →

COLIN MA, M.D.

Ophthalmology Physician in PORTLAND, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
26
Medicare Part D claims · 14 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.8757/100
▼ 3 pts below national avg 83.1 · [object Object]
What the federal data reveals: COLIN MA, M.D. is a Ophthalmology Physician ([object Object]) practicing in PORTLAND, Oregon with a Medicare Part D prescribing footprint of 26 claims across 14 beneficiaries — 42% brand-name prescribing . Their CMS MIPS Final Score of 79.8757/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What the federal data shows

COLIN MA, M.D. reported a CMS MIPS final score of 79.8757/100 — below the 83.1 national average — and filed 26 Medicare Part D claims in 2023.

79.8757/100
MIPS score · -3 vs avg
26
Part D claims, 2023
58%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

COLIN MA, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

80 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

COLIN MA, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

COLIN MA, M.D. at a glance

Near national average

NPI registry status

Active

Issued 06/15/2005

NPI 1164427308

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

26 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

79.8757/100 3.2242999999999995% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oregon

How Ophthalmology Physician compares to other specialties among Oregon providers

Oregon providers

Ophthalmology Physician share within Oregon

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Oregon

Medicare quality performance — MIPS

COLIN MA, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

Near national average
MIPS Final Score
79.8757/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 79.8757/100 vs national avg 83.1

0%100%National avg83%79.9%
MIPS final score (Ophthalmology Physician) — 79.8757/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

COLIN MA, M.D. is a Ophthalmology Physician provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1164427308. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

COLIN MA, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 2525 NW LOVEJOY ST, PORTLAND, OR, 97210, with a listed phone of (503) 274-2121. NPI 1164427308 was issued on 06/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 26 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $2K in drug spend, split 42% brand-name and 58% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.8757/100 for the 2023 performance year (Quality 100, Cost 32.919), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2525 NW LOVEJOY ST
PORTLAND, OR 97210

Provider Details

NPI 1164427308
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 06/15/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.8757
Final Score
Avg: 83.1
100
Quality
32.919
Cost

Reporting: Group practice

Brand vs generic prescribing mix · Above average

COLIN MA, M.D. — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 26 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

26
Total Claims
$2K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
38
Total Day Supply
1,051
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$2K
Generic Drug Cost
$380

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
1.33

Ophthalmology Physician Overview

How COLIN MA, M.D. fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

COLIN MA, M.D.'s 26 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as MA.

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is COLIN MA, M.D.'s specialty?
COLIN MA, M.D. specializes in Ophthalmology Physician and practices in PORTLAND, Oregon. Credentials: M.D..
How much does COLIN MA, M.D. prescribe under Medicare Part D?
In 2023, COLIN MA, M.D. wrote 26 Medicare Part D claims totaling $2K in drug costs for 14 beneficiaries.
What is COLIN MA, M.D.'s Medicare quality score?
COLIN MA, M.D. has a CMS MIPS Final Score of 79.8757/100 (Quality: 100, Cost: 32.919). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is COLIN MA, M.D. located?
COLIN MA, M.D. is located at 2525 NW LOVEJOY ST, PORTLAND, OR, 97210. Phone: (503) 274-2121.
What is COLIN MA, M.D.'s NPI number?
COLIN MA, M.D.'s National Provider Identifier (NPI) is 1164427308, issued on 06/15/2005.
Does COLIN MA, M.D. prescribe more brand-name or generic drugs?
COLIN MA, M.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $2K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
Does COLIN MA, M.D. accept Medicare?
COLIN MA, M.D. appears in CMS Medicare data with 26 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify COLIN MA, M.D.'s credentials?
COLIN MA, M.D.'s NPI is 1164427308 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology