Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark A Key, PA

Individual provider Physician Assistant · NPI 1699833145

Mark A Key, PA is a Physician Assistant in Hershey, Pennsylvania. Qualified in 1996, 30 years ago. Practices with Northern Arizona Healthcare Corporation, a 395-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Delaware, Florida, Montana and Pennsylvania and 1 more.

Years since qualifying
30
Licensed in
DE, FL, MT, PA, VA
In the registry since
2006
Specialties on file
6
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

500 University Dr
Hershey, PA 17033-2360
Phone: (800) 243-1455
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 1324 Lakeland Hills Blvd, Lakeland, FL 33805-4543 — (863) 687-1100
  • 600 E Dixie Ave, Leesburg, FL 34748-5925 — (352) 323-5467
  • 17021 Us Highway 441, Mount Dora, FL 32757-6734 — (352) 720-7999
  • 2 Tampa General Cir, Tampa, FL 33606-3571 — (813) 821-8038
  • 2006 Health Campus Dr Ste 200, Rockingham, VA 22801-8679 — (540) 689-5555

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 143035 (MT)
Physician Assistant Taxonomy 363A00000X · Licence PA9112176 (FL)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence C5-0000477 (DE)
Physician Assistant Taxonomy 363A00000X · Licence 0110006202 (VA)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence MA002332L (PA)
Physician Assistant Taxonomy 363A00000X · Licence C5-0000477 (DE)

Record details

NPI number1699833145
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedDecember 5, 2006
Last updated in NPPESOctober 8, 2025
Certification dateOctober 8, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Northern Arizona Healthcare Corporation — 395 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations10 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients18
Services billed 27 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $87 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Northern Arizona Healthcare Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 395 clinicians in the practice; 12 are shown here.

Other providers in Hershey