Mark Thomas, PHD
Clinical Psychologist · Pittsburgh, PA
Mark Thomas, PHD is a clinical psychologist with a practice address in Pittsburgh, Pennsylvania, and NPI 1891595005, issued on Mar 17, 2025. Check the license (Pennsylvania PS020420, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Thomas
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PS020420 PA
Self-reported in NPPES; status is on the state search - Practice location
- 750 Washington RD Ste 19, Pittsburgh, PA 15228
- Phone
- (412) 298-2103
- Enumerated
- Mar 17, 2025
- Record last updated
- Nov 12, 2025
- Medicare enrollment
- Enrolled (PECOS I20260415000041); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 2,597 in Pennsylvania → Look up another NPI →
Also registered at 750 Washington RD Ste 19
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lianne Vighetti, DHCE, HEC-C, LCSWClinical Social Worker1346848165
Verify Mark Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license PS020420Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Thomas among 2,597 clinical psychologist records in Pennsylvania
Mark Thomas, PHD is one of 2,597 clinical psychologist records with a practice address in Pennsylvania. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 97% of them.
- NPI issued2025 · 97% of these records are older, 1% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated2022 · median 2003 among the 707 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in Pennsylvania
There are 2,597 clinical psychologist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,597 in Pennsylvania → Every provider in Pittsburgh → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Jamie Arthurs, PSY.DPittsburgh, PA 152281932583523
- Patricia Dobosh, PH.D.Pittsburgh, PA 152281295730844
- John Duffy, PH.D.Pittsburgh, PA 152281083732564
- Zachary Friedman, PHDPittsburgh, PA 152281497510283
- Corrine Nichol, PSYDPittsburgh, PA 152281073075362
- Nancy Pegher, PSY.D.Pittsburgh, PA 152281891855250
- Robert Sherry, PH.D.Pittsburgh, PA 152281497750566
- Nancie Tormey, PH.D.Pittsburgh, PA 152281740228139
Common questions
What is Mark Thomas, PHD's NPI number?
Mark Thomas, PHD's National Provider Identifier (NPI) is 1891595005, issued on Mar 17, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Mark Thomas, PHD located?
The NPPES record lists a practice address at 750 Washington RD Ste 19, Pittsburgh, PA, 15228. Phone: (412) 298-2103. Providers update this record themselves, so call before visiting.
How can I verify Mark Thomas, PHD's license?
NPPES lists Pennsylvania license number PS020420, 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. 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.