2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1659940096 MD
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JONAH YOUSIF, MD

Retina Specialist (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
248
Medicare Part D claims · 103 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
What the federal data reveals: JONAH YOUSIF, MD is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in ANN ARBOR, Michigan with a Medicare Part D prescribing footprint of 248 claims across 103 beneficiaries .

What stands out: JONAH YOUSIF, MD filed 248 Medicare Part D claims in 2023 across ANN ARBOR, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JONAH YOUSIF, MD 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).

JONAH YOUSIF, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/21/2021

NPI 1659940096

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

248 56% vs specialty avg

2023 prescription claims

Specialty avg: 558

Specialty distribution in Michigan

How Retina Specialist (Ophthalmology) Physician compares to other specialties among Michigan providers

Michigan providers

Retina Specialist (Ophthalmology) Physician share within Michigan

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Retina Specialist (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).

JONAH YOUSIF, MD is a Retina Specialist (Ophthalmology) Physician provider practicing in ANN ARBOR, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1659940096. 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.

JONAH YOUSIF, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 1000 WALL ST, ANN ARBOR, MI, 48105, with a listed phone of (734) 764-4190. NPI 1659940096 was issued on 06/21/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YOUSIF 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 248 prescription claims written by this provider, covering 103 Medicare beneficiaries and totaling roughly $65K in drug spend. 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.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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 ST
ANN ARBOR, MI 48105

Provider Details

NPI 1659940096
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 06/21/2021

Hospital and facility affiliations

Facilities where JONAH YOUSIF, MD 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 JONAH YOUSIF, MD. To verify JONAH YOUSIF, MD'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.

Medicare Part D Prescribing Data

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

248
Total Claims
$65K
Total Drug Cost
103
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
376
Total Day Supply
10,032
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.39
Gender Split
67% female / 33% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Fluorometholone
30
Prednisolone Acetate
30
Erythromycin
Erythromycin Base
26
Latanoprost
19
Restasis
Cyclosporine
16
Brimonidine Tartrate
12
Xiidra
Lifitegrast
11

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

Retina Specialist (Ophthalmology) Physician Overview

How JONAH YOUSIF, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

JONAH YOUSIF, MD's 248 claims are below the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Michigan

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

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JONAH YOUSIF, MD's specialty?
JONAH YOUSIF, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in ANN ARBOR, Michigan. Credentials: MD.
How much does JONAH YOUSIF, MD prescribe under Medicare Part D?
In 2023, JONAH YOUSIF, MD wrote 248 Medicare Part D claims totaling $65K in drug costs for 103 beneficiaries.
Where is JONAH YOUSIF, MD located?
JONAH YOUSIF, MD is located at 1000 WALL ST, ANN ARBOR, MI, 48105. Phone: (734) 764-4190.
What is JONAH YOUSIF, MD's NPI number?
JONAH YOUSIF, MD's National Provider Identifier (NPI) is 1659940096, issued on 06/21/2021.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does JONAH YOUSIF, MD prescribe most often?
Based on 2023 Medicare Part D data, JONAH YOUSIF, MD's most frequently prescribed drugs include Fluorometholone, Prednisolone Acetate, Erythromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JONAH YOUSIF, MD accept Medicare?
JONAH YOUSIF, MD appears in CMS Medicare data with 248 Part D claims and 103 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONAH YOUSIF, MD's credentials?
JONAH YOUSIF, MD's NPI is 1659940096 with credentials MD. 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