2026 NPPES data Ophthalmology Physician NPI 1629086350 MD PH D
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DONALD PURO, MD PH D

Ophthalmology Physician in ANN ARBOR, Michigan. 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
883
Medicare Part D claims · 254 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DONALD PURO, MD PH D filed 883 Medicare Part D claims in 2023 as a Ophthalmology Physician in ANN ARBOR, Michigan, prescribing 65% generic.

883
Part D claims, 2023
65%
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.

DONALD PURO, MD PH D's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

883 Top 27% higher than 73% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

DONALD PURO, MD PH D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about DONALD PURO, MD PH D?

Quality data not reported

NPI registry status

Active

Issued 08/05/2006

NPI 1629086350

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

883 38% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Michigan

How Ophthalmology Physician compares to other specialties among Michigan providers

Michigan providers

Ophthalmology Physician share within Michigan

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

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmology Physician ABMS/AOA estimate

Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

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).

DONALD PURO, MD PH D appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD PH D credentials at 1000 WALL STREET, ANN ARBOR, MI, 48105, with a listed phone of (734) 764-4190. NPI 1629086350 was issued on 08/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PURO 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 883 prescription claims written by this provider, covering 254 Medicare beneficiaries and totaling roughly $192K in drug spend, split 35% brand-name and 65% 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.

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

1000 WALL STREET
ANN ARBOR, MI 48105

Provider Details

NPI 1629086350
Specialty Ophthalmology Physician
Credentials MD PH D
Gender Male
NPI Issued 08/05/2006

Hospital and facility affiliations

Facilities where DONALD PURO, MD PH D bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

REGENTS OF THE UNIVERSITY OF MICHIGAN
ANN ARBOR, MI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Michigan MI-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to DONALD PURO, MD PH D. To verify DONALD PURO, MD PH D's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

DONALD PURO, MD PH D — brand share 35.0%
Specialty average (est.)

35% brand-name claims vs 65% generic, on 883 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.

883
Total Claims
$192K
Total Drug Cost
254
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,307
Total Day Supply
34,841
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$160K
Generic Drug Cost
$31K
Antibiotic Claims
15

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.31
Gender Split
63% female / 37% male
Age Distribution
<65: 23, 65-74: 113, 75-84: 85, 85+: 33

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What DONALD PURO, MD PH D prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Erythromycin
Erythromycin Base
218
Latanoprost
195
Restasis
Cyclosporine
149
Cyclosporine
62
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
39
Dorzolamide Hcl
28
Timolol Maleate
26
Prednisolone Acetate
25
Olopatadine Hcl
22
Brimonidine Tartrate
20

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Ophthalmology Physician Overview

How DONALD PURO, MD PH 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

DONALD PURO, MD PH D's 883 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Michigan

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

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

Frequently Asked Questions

What is DONALD PURO, MD PH D's specialty?
DONALD PURO, MD PH D specializes in Ophthalmology Physician and practices in ANN ARBOR, Michigan. Credentials: MD PH D.
How much does DONALD PURO, MD PH D prescribe under Medicare Part D?
In 2023, DONALD PURO, MD PH D wrote 883 Medicare Part D claims totaling $192K in drug costs for 254 beneficiaries.
Where is DONALD PURO, MD PH D located?
DONALD PURO, MD PH D is located at 1000 WALL STREET, ANN ARBOR, MI, 48105. Phone: (734) 764-4190.
What is DONALD PURO, MD PH D's NPI number?
DONALD PURO, MD PH D's National Provider Identifier (NPI) is 1629086350, issued on 08/05/2006.
Does DONALD PURO, MD PH D prescribe more brand-name or generic drugs?
DONALD PURO, MD PH D's prescribing is 35% brand-name and 65% generic drugs by claim count, with $160K 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.
What drugs does DONALD PURO, MD PH D prescribe most often?
Based on 2023 Medicare Part D data, DONALD PURO, MD PH D's most frequently prescribed drugs include Erythromycin, Latanoprost, Restasis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONALD PURO, MD PH D accept Medicare?
DONALD PURO, MD PH D appears in CMS Medicare data with 883 Part D claims and 254 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONALD PURO, MD PH D's credentials?
DONALD PURO, MD PH D's NPI is 1629086350 with credentials MD PH 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.
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