2026 NPPES data Family Medicine Physician NPI 1013987759 D.O.
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GARY CLARK, D.O.

Family Medicine Physician in CARROLLTON, 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
741
Medicare Part D claims · 461 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GARY CLARK, D.O. filed 741 Medicare Part D claims in 2023 as a Family Medicine Physician in CARROLLTON, Ohio, prescribing 96% generic.

741
Part D claims, 2023
96%
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.

GARY CLARK, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

741 Top 29% higher than 71% 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%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 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)

GARY CLARK, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 GARY CLARK, D.O.?

Quality data not reported

NPI registry status

Active

Issued 01/25/2006

NPI 1013987759

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

741 78% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Ohio

How Family Medicine Physician compares to other specialties among Ohio providers

Ohio providers

Family Medicine Physician share within Ohio

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family Medicine 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).

GARY CLARK, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 125 CANTON RD NW, CARROLLTON, OH, 44615, with a listed phone of (330) 627-7641. NPI 1013987759 was issued on 01/25/2006. 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 741 prescription claims written by this provider, covering 461 Medicare beneficiaries and totaling roughly $11K in drug spend, split 4% brand-name and 96% 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

125 CANTON RD NW
CARROLLTON, OH 44615

Provider Details

NPI 1013987759
Specialty Family Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 01/25/2006

Hospital and facility affiliations

Facilities where GARY CLARK, D.O. 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.

CLEVELAND CLINIC
★★★★☆ 4/5
CLEVELAND, OH
Acute Care Hospitals
CMS CCN: 360180
CLEVELAND CLINIC MERCY HOSPITAL
CARROLTON, 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).

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 GARY CLARK, D.O.. To verify GARY CLARK, D.O.'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 · Generic-heavy

GARY CLARK, D.O. — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 741 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.

741
Total Claims
$11K
Total Drug Cost
461
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
741
Total Day Supply
7,201
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$1K
Generic Drug Cost
$9K
Antibiotic Claims
394

Patient Demographics

Average Patient Age
70.4 years
Avg HCC Risk Score
1.12
Gender Split
61% female / 39% male
Age Distribution
<65: 93, 65-74: 198, 75-84: 127, 85+: 43

Top Prescribed Drugs (Medicare Part D)

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

What GARY CLARK, D.O. 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
Methylprednisolone
100
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
87
Cephalexin
74
Azithromycin
37
Doxycycline Hyclate
37
Naproxen
37
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
35
Etodolac
34
Cefdinir
33
Prednisone
33

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

Family Medicine Physician Overview

How GARY CLARK, D.O. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

GARY CLARK, D.O.'s 741 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Ohio

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GARY CLARK, D.O.'s specialty?
GARY CLARK, D.O. specializes in Family Medicine Physician and practices in CARROLLTON, Ohio. Credentials: D.O..
How much does GARY CLARK, D.O. prescribe under Medicare Part D?
In 2023, GARY CLARK, D.O. wrote 741 Medicare Part D claims totaling $11K in drug costs for 461 beneficiaries.
Where is GARY CLARK, D.O. located?
GARY CLARK, D.O. is located at 125 CANTON RD NW, CARROLLTON, OH, 44615. Phone: (330) 627-7641.
What is GARY CLARK, D.O.'s NPI number?
GARY CLARK, D.O.'s National Provider Identifier (NPI) is 1013987759, issued on 01/25/2006.
Does GARY CLARK, D.O. prescribe more brand-name or generic drugs?
GARY CLARK, D.O.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $1K in brand drug costs.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does GARY CLARK, D.O. prescribe most often?
Based on 2023 Medicare Part D data, GARY CLARK, D.O.'s most frequently prescribed drugs include Methylprednisolone, Amoxicillin-Clavulanate Potass, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GARY CLARK, D.O. accept Medicare?
GARY CLARK, D.O. appears in CMS Medicare data with 741 Part D claims and 461 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GARY CLARK, D.O.'s credentials?
GARY CLARK, D.O.'s NPI is 1013987759 with credentials D.O.. 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