Registry data as of Aug 27, 2026

Gregory Harriman, M.D.

Allergy & Immunology Physician · Wayne, PA

Gregory Harriman, M.D. is an allergy & immunology physician with a practice address in Wayne, Pennsylvania, and NPI 1447640438, issued on Jan 28, 2015. Check the license on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1447640438
Name
Gregory Harriman
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
Practice location
231 Iron Works Way, Wayne, PA 19087
Phone
(610) 246-9822
Enumerated
Jan 28, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Gregory Harriman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)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
Open 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.

Allergy & Immunology Physician providers in Pennsylvania

There are 170 allergy & immunology physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 170 in Pennsylvania → Every provider in Wayne →

Other allergy & immunology physician records in Pennsylvania

  1. Jerome Aarons, M.D.Pittsburgh, PA1992936611
  2. Elias Abboud, M.D.Jenkintown, PA1003815374
  3. Carol Actor, M.D.Phoenixville, PA1851444269
  4. Neha Agnihotri, MDCranberry Township, PA1700203817
  5. Sartaj Ahmed, M.D.Erie, PA1629255443
  6. Mohammad Akbar, MDPottsville, PA1568430973
  7. Elias Akl, M.D.Philadelphia, PA1104176106
  8. Taha Al-Shaikhly, M.B.CH.B.Hershey, PA1295155885
  9. David Anmuth, MDDanville, PA1700913290
  10. Robert Anolik, MDBlue Bell, PA1497758536

Common questions

What is Gregory Harriman, M.D.'s NPI number?

Gregory Harriman, M.D.'s National Provider Identifier (NPI) is 1447640438, issued on Jan 28, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Harriman, M.D. located?

The NPPES record lists a practice address at 231 Iron Works Way, Wayne, PA, 19087. Phone: (610) 246-9822. Providers update this record themselves, so call before visiting.

How can I verify Gregory Harriman, M.D.'s license?

Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

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.