Tierney Diehl, PA-C
Physician Assistant · Pittsburgh, PA
Tierney Diehl, PA-C is a physician assistant with a practice address in Pittsburgh, Pennsylvania, and NPI 1427823772, issued on Nov 16, 2023. Check the license with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tierney Diehl
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 3600 Forbes Ave, Pittsburgh, PA 15213
- Phone
- (412) 432-7400
- Enumerated
- Nov 16, 2023
- Entity
- Type 1 · individual
Also registered at 3600 Forbes Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aya Alfardous Alazm, MDStudent in an Organized Health Care Education/Training Program1083592984
- Kelsi Alsop, CRNPFamily Nurse Practitioner1023736451
- Elizabeth Andraska, M.D.Vascular Surgery Physician1225569007
- Vincent Antonelli, MDSurgery Physician1629539564
- Cooper AubelePhysician Assistant1538093059
- Lidija Barbaric, MDStudent in an Organized Health Care Education/Training Program1306589981
Verify Tierney Diehl 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
75% fewer Medicare Part D claims than the average physician assistant in 2024
206 Medicare Part D claims for 156 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.
Most prescribed
- Baclofen23 claims
- Cephalexin16 claims
- Methylprednisolone16 claims
- Amoxicillin-Clavulanate Potass14 claims
- Ondansetron Hcl13 claims
- Prednisone13 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.
913 physician assistant records list a Pittsburgh practice address
They are 913 of the 28,866 NPPES records with a Pittsburgh practice address, and 7,836 physician assistant records in Pennsylvania.
All 913 in Pittsburgh → All 7,836 in Pennsylvania → Every provider in Pittsburgh →
Other physician assistant records in Pennsylvania
- Matthew AbadLansdowne, PA1720113350
- Ariane Abadi, PA-CPhiladelphia, PA1619641685
- Rama Abbireddy, PABethlehem, PA1912887555
- Marianne Abdalah, PASewickley, PA1346088473
- Donia Abdalla, MMSC, PA-CHarrisburg, PA1164376851
- Raneem Abdelaziz, PA-CQuakertown, PA1003764713
- Safiyya Abdul-Ghani, PAOaks, PA1689904161
- Lauren Abdul-Malak, PAAbington, PA1083196117
- Katherine Abel, PA-CSteelton, PA1972944437
- Mark Abel, PA-CSouth Abington Township, PA1710131610
Common questions
What is Tierney Diehl, PA-C's NPI number?
Tierney Diehl, PA-C's National Provider Identifier (NPI) is 1427823772, issued on Nov 16, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Tierney Diehl, PA-C located?
The NPPES record lists a practice address at 3600 Forbes Ave, Pittsburgh, PA, 15213. Phone: (412) 432-7400. Providers update this record themselves, so call before visiting.
How can I verify Tierney Diehl, PA-C's license?
Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Tierney Diehl, PA-C prescribe under Medicare Part D?
In 2024, Tierney Diehl, PA-C had 206 Medicare Part D claims for 156 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.