2026 NPPES data Ophthalmology Physician NPI 1922030907 M.D.
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JASON YONKER, M.D.

Ophthalmology Physician in SALISBURY, Maryland. 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
4K
Medicare Part D claims · 778 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
99.5002/100
▲ 16 pts above national avg 83.1 · [object Object]
Industry payments
$751.43
15 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JASON YONKER, M.D. reported a CMS MIPS final score of 99.5002/100 — above the 83.1 national average — and filed 3,777 Medicare Part D claims in 2023.

99.5002/100
MIPS score · +16 vs avg
4K
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.

JASON YONKER, 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

100 Top 9% higher than 91% 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%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

JASON YONKER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 JASON YONKER, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 07/07/2006

NPI 1922030907

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

3,777 166% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

99.5002/100 16.400200000000012% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maryland

How Ophthalmology Physician compares to other specialties among Maryland providers

Maryland providers

Ophthalmology Physician share within Maryland

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

Medicare quality performance — MIPS

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

High performer (top quartile)
MIPS Final Score
99.5002/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 99.5002/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Ophthalmology Physician) — 99.5002/100 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).

JASON YONKER, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 105 PINE BLUFF ROAD, SALISBURY, MD, 21801, with a listed phone of (410) 749-1191. NPI 1922030907 was issued on 07/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YONKER 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 3,777 prescription claims written by this provider, covering 778 Medicare beneficiaries and totaling roughly $684K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.5002/100 for the 2023 performance year, 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

105 PINE BLUFF ROAD
SALISBURY, MD 21801

Provider Details

NPI 1922030907
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 07/07/2006

CMS Quality Score (MIPS)

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

99.5002
Final Score
Avg: 83.1
98.334
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JASON YONKER, M.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.

CHESAPEAKE EYE CENTER, P.A.
BERLIN, MD

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for JASON YONKER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$751

Largest payer

Glaukos Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

JASON YONKER, M.D. — brand share 35.0%
Specialty average (est.)

35% brand-name claims vs 65% generic, on 3,777 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.

3,777
Total Claims
$684K
Total Drug Cost
778
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,729
Total Day Supply
222,850
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$558K
Generic Drug Cost
$126K

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
1.13
Gender Split
54% female / 46% male
Age Distribution
<65: 31, 65-74: 300, 75-84: 314, 85+: 133

Top Prescribed Drugs (Medicare Part D)

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

What JASON YONKER, M.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
Latanoprost
1,066
Timolol Maleate
346
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
287
Brimonidine Tartrate
192
Dorzolamide Hcl
183
Rhopressa
Netarsudil Mesylate
153
Prednisolone Acetate
148
Erythromycin
Erythromycin Base
139
Lumigan
Bimatoprost
135
Moxifloxacin
Moxifloxacin Hcl
114

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

Ophthalmology Physician Overview

How JASON YONKER, 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

JASON YONKER, M.D.'s 3,777 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is JASON YONKER, M.D.'s specialty?
JASON YONKER, M.D. specializes in Ophthalmology Physician and practices in SALISBURY, Maryland. Credentials: M.D..
How much does JASON YONKER, M.D. prescribe under Medicare Part D?
In 2023, JASON YONKER, M.D. wrote 3,777 Medicare Part D claims totaling $684K in drug costs for 778 beneficiaries.
What is JASON YONKER, M.D.'s Medicare quality score?
JASON YONKER, M.D. has a CMS MIPS Final Score of 99.5002/100, Cost: 98.334. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JASON YONKER, M.D. located?
JASON YONKER, M.D. is located at 105 PINE BLUFF ROAD, SALISBURY, MD, 21801. Phone: (410) 749-1191.
What is JASON YONKER, M.D.'s NPI number?
JASON YONKER, M.D.'s National Provider Identifier (NPI) is 1922030907, issued on 07/07/2006.
Does JASON YONKER, M.D. prescribe more brand-name or generic drugs?
JASON YONKER, M.D.'s prescribing is 35% brand-name and 65% generic drugs by claim count, with $558K 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 JASON YONKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JASON YONKER, M.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JASON YONKER, M.D. accept Medicare?
JASON YONKER, M.D. appears in CMS Medicare data with 3,777 Part D claims and 778 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JASON YONKER, M.D.'s credentials?
JASON YONKER, M.D.'s NPI is 1922030907 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