NPPES file of Aug 9, 2026

Gillian May Davis, PA-C

Physician Assistant · Altoona, PA

Gillian May Davis, PA-C is a physician assistant with a practice address in Altoona, Pennsylvania, and NPI 1598657116, issued on Jul 17, 2025. Check the license (Pennsylvania MA066683, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598657116
Name
Gillian May Davis
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
MA066683 PA
Self-reported in NPPES; status is on the state search
Practice location
1414 9TH Ave, Altoona, PA 16602
Phone
(814) 946-1655
Enumerated
Jul 17, 2025
Record last updated
Sep 25, 2025
Medicare enrollment
Enrolled (PECOS I20251204001425); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →

Also registered at 1414 9TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shabbir Ahmad, M.D.Hematology & Oncology Physician1982673133
  2. Anthony Bartkowiak, M.D.Internal Medicine Physician1538131495
  3. Theodore BelisUrology Physician1053329847
  4. Hasan Bit-Shawish, MDHematology & Oncology Physician1871702779
  5. Jill Blescia, M.D.Pediatrics Physician1336252808
  6. Diane BranniganPhysician Assistant1679532485

Verify Gillian May Davis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license MA066683    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Upmc Altoona Regional Health Services, Inc.Altoona, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gillian May Davis among 8,020 physician assistant records in Pennsylvania

Gillian May Davis, PA-C 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 2025, is newer than 89% of them.

  • NPI issued2025 · 89% of these records are older, 3% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2025 · 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).

122 physician assistant records list a practice address in Altoona

They are 122 of the 1,985 NPPES records with a practice address in Altoona, and 8,020 physician assistant records in Pennsylvania.

All 8,020 in Pennsylvania → Every provider in Altoona → Physician Assistant nationwide →

The 8 physician assistant records with the nearest ZIP codes

  1. Paul Augenstein, PA-CAltoona, PA 166021740209055
  2. Loni Baird, PA-CAltoona, PA 166021467426148
  3. Brett Beech, PAAltoona, PA 166021790755676
  4. Diane BranniganAltoona, PA 166021679532485
  5. Jennifer Geishauser, PA-CAltoona, PA 166021669433728
  6. Sally Guerin, PA-CAltoona, PA 166021699735241
  7. Melissa Hall, PA-CAltoona, PA 166021275594319
  8. Peggy Hutton, PA-CAltoona, PA 166021366475204

Common questions

What is Gillian May Davis, PA-C's NPI number?

Gillian May Davis, PA-C's National Provider Identifier (NPI) is 1598657116, issued on Jul 17, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Gillian May Davis, PA-C located?

The NPPES record lists a practice address at 1414 9TH Ave, Altoona, PA, 16602. Phone: (814) 946-1655. Providers update this record themselves, so call before visiting.

How can I verify Gillian May Davis, PA-C's license?

NPPES lists Pennsylvania license number MA066683, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.