Mark A. Key, PA
Physician Assistant · Hershey, PA
Mark A. Key, PA is a physician assistant with a practice address in Hershey, Pennsylvania, and NPI 1699833145, issued on Dec 5, 2006. Check the license (Pennsylvania MA002332L, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark A. Key
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- MA002332L PA
143035 MT
C5-0000477 DE
PA9112176 FL
0110006202 VA
Self-reported in NPPES; status is on the state search - Practice location
- 500 University Dr, Hershey, PA 17033
- Phone
- (800) 243-1455
- Enumerated
- Dec 5, 2006
- Record last updated
- Oct 8, 2025
- Medicaid ID
- 104900800 FL
- Medicare enrollment
- Enrolled (PECOS I20240807001155); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →
Also registered at 500 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aiza Abbas, MDStudent in an Organized Health Care Education/Training Program1164312500
- Fatemeh Abbasi, MDPulmonary Disease Physician1750878625
- Andrea Abbe, LDNRegistered Dietitian1366623795
- Mahdi Abdallah, MDStudent in an Organized Health Care Education/Training Program1497457360
- Ashraf Abdelhalim, MDAnesthesiology Physician1356931729
Verify Mark A. Key in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license MA002332LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average physician assistant in 2024
65 Medicare Part D claims for 13 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium12 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: $185.44
3 payments; by number, the most common kind was food and beverage; the largest payer was W. L. Gore & Associates, Inc. The 64,719 providers of this specialty with any payment received $841.65 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.
Bills Medicare through 5 group practices
- Chesapeake Regional Medical GroupChesapeake, VA
- Cheyenne Regional Physicians Group LLCCheyenne, WY
- Druid City Physician Services LLCTuscaloosa, AL
- Northern Arizona Healthcare CorporationFlagstaff, AZ
- Rmh Medical Group LLCRockingham, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark A. Key among 8,020 physician assistant records in Pennsylvania
Mark A. Key, PA is one of 8,020 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 85% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1996 · median 2018 among the 5,313 with a school on file
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
234 physician assistant records list a practice address in Hershey
They are 234 of the 3,972 NPPES records with a practice address in Hershey, and 8,020 physician assistant records in Pennsylvania.
All 8,020 in Pennsylvania → Every provider in Hershey → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Rozalyn Atherton, PA-CHershey, PA 170331730153727
- Christine Bruce, PA C MHSAHershey, PA 170331134107188
- Melissa Chase, PA-CHershey, PA 170331619931607
- Heather Donato, MPAS,PA-CHershey, PA 170331801883111
- Geoffrey Fidelman, PA-CHershey, PA 170331306800230
- Derek Flynn, P.A.Hershey, PA 170331619970936
- Kristi Gruber, PA-CHershey, PA 170331316901176
- Jaime Halin, PACHershey, PA 170331679568810
Common questions
What is Mark A. Key, PA's NPI number?
Mark A. Key, PA's National Provider Identifier (NPI) is 1699833145, issued on Dec 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Key, PA located?
The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (800) 243-1455. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Key, PA's license?
NPPES lists Pennsylvania license number MA002332L, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Mark A. Key, PA prescribe under Medicare Part D?
In 2024, Mark A. Key, PA had 65 Medicare Part D claims for 13 beneficiaries; the average among physician assistant prescribers was 830. 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.