2026 NPPES data Ophthalmology Physician NPI 1134122948 M.D.
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STEPHEN CLARK, M.D.

Ophthalmology Physician in PERRYSBURG, Ohio. 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 · 890 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.6049/100
▼ 9 pts below national avg 83.1 · [object Object]
Industry payments
$285.13
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: STEPHEN CLARK, M.D. is a Ophthalmology Physician ([object Object]) practicing in PERRYSBURG, Ohio with a Medicare Part D prescribing footprint of 4K claims across 890 beneficiaries — 26% brand-name prescribing . Their CMS MIPS Final Score of 73.6049/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $285.13 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What the federal data shows

STEPHEN CLARK, M.D. reported a CMS MIPS final score of 73.6049/100 — below the 83.1 national average — and filed 3,778 Medicare Part D claims in 2023.

73.6049/100
MIPS score · -9 vs avg
4K
Part D claims, 2023
74%
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.

STEPHEN CLARK, 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

74 11th percentile higher than 11% 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)

STEPHEN CLARK, 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).

STEPHEN CLARK, M.D. at a glance

Below national average

NPI registry status

Active

Issued 05/24/2005

NPI 1134122948

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

3,778 166% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

73.6049/100 9.495099999999994% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Ohio

How Ophthalmology Physician compares to other specialties among Ohio providers

Ohio providers

Ophthalmology Physician share within Ohio

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

Medicare quality performance — MIPS

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

Below national average
MIPS Final Score
73.6049/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 73.6049/100 vs national avg 83.1

0%100%National avg83%73.6%
MIPS final score (Ophthalmology Physician) — 73.6049/100 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).

STEPHEN CLARK, M.D. is a Ophthalmology Physician provider practicing in PERRYSBURG, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1134122948. 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.

STEPHEN CLARK, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 28370 KENSINGTON LN, PERRYSBURG, OH, 43551, with a listed phone of (419) 874-3125. NPI 1134122948 was issued on 05/24/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARK 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 3,778 prescription claims written by this provider, covering 890 Medicare beneficiaries and totaling roughly $312K in drug spend, split 26% brand-name and 74% 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 73.6049/100 for the 2023 performance year (Quality 100, Cost 12.0162), 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

28370 KENSINGTON LN
PERRYSBURG, OH 43551

Provider Details

NPI 1134122948
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 05/24/2005

CMS Quality Score (MIPS)

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

73.6049
Final Score
Avg: 83.1
100
Quality
12.0162
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where STEPHEN CLARK, 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.

PERRYSBURG EYE CENTER, INC.
PERRYSBURG, OH

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 STEPHEN CLARK, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$285

Largest payer

Bausch & Lomb Americas Inc.

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.

License & disciplinary context — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to STEPHEN CLARK, M.D.. To verify STEPHEN CLARK, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

STEPHEN CLARK, M.D. — brand share 26.0%
Specialty average (est.)

26% brand-name claims vs 74% generic, on 3,778 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.

3,778
Total Claims
$312K
Total Drug Cost
890
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,069
Total Day Supply
200,199
Brand vs Generic
26% brand / 74% generic
Brand Drug Cost
$241K
Generic Drug Cost
$71K
Antibiotic Claims
60

Patient Demographics

Average Patient Age
78.0 years
Avg HCC Risk Score
1.21
Gender Split
62% female / 38% male
Age Distribution
<65: 12, 65-74: 291, 75-84: 420, 85+: 167

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
1,430
Timolol Maleate
425
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
328
Prednisolone Acetate
296
Brimonidine Tartrate
201
Dorzolamide Hcl
186
Ofloxacin
146
Moxifloxacin
Moxifloxacin Hcl
92
Lumigan
Bimatoprost
57
Vyzulta
Latanoprostene Bunod
55

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

Ophthalmology Physician Overview

How STEPHEN CLARK, 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

STEPHEN CLARK, M.D.'s 3,778 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Ohio

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

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

Frequently Asked Questions

What is STEPHEN CLARK, M.D.'s specialty?
STEPHEN CLARK, M.D. specializes in Ophthalmology Physician and practices in PERRYSBURG, Ohio. Credentials: M.D..
How much does STEPHEN CLARK, M.D. prescribe under Medicare Part D?
In 2023, STEPHEN CLARK, M.D. wrote 3,778 Medicare Part D claims totaling $312K in drug costs for 890 beneficiaries.
What is STEPHEN CLARK, M.D.'s Medicare quality score?
STEPHEN CLARK, M.D. has a CMS MIPS Final Score of 73.6049/100 (Quality: 100, Cost: 12.0162). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STEPHEN CLARK, M.D. located?
STEPHEN CLARK, M.D. is located at 28370 KENSINGTON LN, PERRYSBURG, OH, 43551. Phone: (419) 874-3125.
What is STEPHEN CLARK, M.D.'s NPI number?
STEPHEN CLARK, M.D.'s National Provider Identifier (NPI) is 1134122948, issued on 05/24/2005.
Does STEPHEN CLARK, M.D. prescribe more brand-name or generic drugs?
STEPHEN CLARK, M.D.'s prescribing is 26% brand-name and 74% generic drugs by claim count, with $241K 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 STEPHEN CLARK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN CLARK, 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 STEPHEN CLARK, M.D. accept Medicare?
STEPHEN CLARK, M.D. appears in CMS Medicare data with 3,778 Part D claims and 890 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN CLARK, M.D.'s credentials?
STEPHEN CLARK, M.D.'s NPI is 1134122948 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