Garrett Clark, D.O.
Internal Medicine Physician · Erie, PA
Garrett Clark, D.O. is an internal medicine physician with a practice address in Erie, Pennsylvania, and NPI 1063677524, issued on Jul 24, 2008. Check the license (Pennsylvania OS014422, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Garrett Clark
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS014422 PA
Self-reported in NPPES; status is on the state search - Practice location
- 5401 Peach St, Erie, PA 16509
- Phone
- (814) 868-2179
- Enumerated
- Jul 24, 2008
- Record last updated
- Mar 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (814) 868-2346
- Medicaid ID
- 1022612880004 PA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 5401 Peach St
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Verify Garrett Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS014422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
111 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Metformin Hcl18 claims
- Simvastatin16 claims
- Donepezil Hcl12 claims
- Memantine Hcl12 claims
- Mirtazapine12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $42.84
1 payment: food and beverage; the largest payer was Otsuka Pharmaceutical Development & Commercialization, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Garrett Clark among 7,300 internal medicine physician records in Pennsylvania
Garrett Clark, D.O. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 43% of them.
- NPI issued2008 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
100 internal medicine physician records list a practice address in Erie
They are 100 of the 5,083 NPPES records with a practice address in Erie, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Erie → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Edward Blounts, D.O.Erie, PA 165091922310721
- Ansley FalconErie, PA 165091518300953
- Amy Farris, DOErie, PA 165091831571470
- Mohammad Kabir, DOErie, PA 165091497276125
- Oleg Kozak, DOErie, PA 165091518452879
- Saiteja Mallipeddi, DOErie, PA 165091356836555
- Jonathan Phillips, DOErie, PA 165091104974237
- Guneet SahotaErie, PA 165091639648421
Common questions
What is Garrett Clark, D.O.'s NPI number?
Garrett Clark, D.O.'s National Provider Identifier (NPI) is 1063677524, issued on Jul 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Garrett Clark, D.O. located?
The NPPES record lists a practice address at 5401 Peach St, Erie, PA, 16509. Phone: (814) 868-2179. Providers update this record themselves, so call before visiting.
How can I verify Garrett Clark, D.O.'s license?
NPPES lists Pennsylvania license number OS014422, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Garrett Clark, D.O. prescribe under Medicare Part D?
In 2024, Garrett Clark, D.O. had 111 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.