Zachary Robert Clark, PA-C
Medical Physician Assistant · Philadelphia, PA
Zachary Robert Clark, PA-C is a medical physician assistant with a practice address in Philadelphia, Pennsylvania, and NPI 1508444027, issued on Mar 29, 2021. Check the license with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary Robert Clark
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 5501 Old York RD, Philadelphia, PA 19141
- Phone
- (800) 346-7834
- Enumerated
- Mar 29, 2021
- Record last updated
- Jul 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210624002626); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,897 in Pennsylvania → Look up another NPI →
Also registered at 5501 Old York RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zachary Robert Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average medical physician assistant in 2024
50 Medicare Part D claims for 40 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 2 group practices
- Einstein Practice Plan IncPhila, PA
- Fornance Physician Services IncEast Norriton, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Robert Clark among 3,897 medical physician assistant records in Pennsylvania
Zachary Robert Clark, PA-C is one of 3,897 medical physician assistant records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 80% of them.
- NPI issued2021 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2015 among the 2,467 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Pennsylvania
There are 3,897 medical physician assistant records in Pennsylvania.
All 3,897 in Pennsylvania → Every provider in Philadelphia → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Shelley Blaker, PAPhila, PA 191411326293523
- Sharon Butterworth, PA-CPhiladelphia, PA 191411871711622
- Ryan Clark, PAPhiladelphia, PA 191411962648121
- L. Dick, PA-CPhiladelphia, PA 191411437313996
- Allison Fike, PAPhila, PA 191411881877637
- Fengyan Gilbert, PA-CPhiladelphia, PA 191411275778797
- Lisa Harrison, PA-CPhiladelphia, PA 191411952519209
- Ryan Howe, PA-CPhila, PA 191411417055419
Common questions
What is Zachary Robert Clark, PA-C's NPI number?
Zachary Robert Clark, PA-C's National Provider Identifier (NPI) is 1508444027, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Robert Clark, PA-C located?
The NPPES record lists a practice address at 5501 Old York RD, Philadelphia, PA, 19141. Phone: (800) 346-7834. Providers update this record themselves, so call before visiting.
How can I verify Zachary Robert Clark, PA-C's license?
Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary Robert Clark, PA-C prescribe under Medicare Part D?
In 2024, Zachary Robert Clark, PA-C had 50 Medicare Part D claims for 40 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.