NPPES file of Aug 9, 2026

Thomas A. Harrison, M.D.

Cardiovascular Disease Physician · Danville, PA

Thomas A. Harrison, M.D. is a cardiovascular disease physician with a practice address in Danville, Pennsylvania, and NPI 1205805983, issued on Mar 16, 2006. Check the license (Pennsylvania MD041842E, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1205805983
Name
Thomas A. Harrison
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
MD041842E PA
Self-reported in NPPES; status is on the state search
Practice location
100 N Academy Ave, Danville, PA 17822
Phone
(570) 271-6523
Enumerated
Mar 16, 2006
Record last updated
Aug 9, 2026
Medicaid ID
001127120 PA
Medicare enrollment
Enrolled (PECOS I20080305000209); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 1980
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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Also registered at 100 N Academy Ave

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

  1. Paige AaronStudent in an Organized Health Care Education/Training Program1730976218
  2. Zainab AbdulhuseinGeneral Practice Dentistry1851108419
  3. Kristin AblineRegistered Nurse1174368757
  4. Clara Abouelsaad, DOStudent in an Organized Health Care Education/Training Program1013610062
  5. Dana Achenbach, PHARMDPharmacist1528612975
  6. Maisa AdamAnatomic Pathology & Clinical Pathology Physician1568306512

Verify Thomas A. Harrison in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD041842E
    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.

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Bills Medicare through one group practice

  1. Geisinger ClinicDanville, PA

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

Thomas A. Harrison among 1,476 cardiovascular disease physician records in Pennsylvania

Thomas A. Harrison, M.D. is one of 1,476 cardiovascular disease physician records with a practice address in Pennsylvania. 85% 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 20% of them.

  • NPI issued2006 · 20% of these records are older, 45% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1980 · median 2000 among the 1,003 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

45 cardiovascular disease physician records list a practice address in Danville

They are 45 of the 3,116 NPPES records with a practice address in Danville, and 1,476 cardiovascular disease physician records in Pennsylvania.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Joyce Burnside, M.D.Danville, PA 178221568437457
  2. Richard Butcher, M.D.Danville, PA 178221639144520
  3. Henry Fesniak, M.D.Danville, PA 178221174590277
  4. William Haynos, MDDanville, PA 178221093786923
  5. Farrukh Khan, MDDanville, PA 178221871594077
  6. Louis Nassef, M.D.Danville, PA 178221659334548
  7. Jess Oren, M.D.Danville, PA 178221114980901
  8. John Pfeifer, M.D.Danville, PA 178221104845395

Common questions

What is Thomas A. Harrison, M.D.'s NPI number?

Thomas A. Harrison, M.D.'s National Provider Identifier (NPI) is 1205805983, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas A. Harrison, M.D. located?

The NPPES record lists a practice address at 100 N Academy Ave, Danville, PA, 17822. Phone: (570) 271-6523. Providers update this record themselves, so call before visiting.

How can I verify Thomas A. Harrison, M.D.'s license?

NPPES lists Pennsylvania license number MD041842E, as entered by the provider. 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), 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.