Gretchen Mathieu, PH.D.
Counseling Psychologist · Philadelphia, PA
Gretchen Mathieu, PH.D. is a counseling psychologist with a practice address in Philadelphia, Pennsylvania, and NPI 1982836508, issued on Aug 15, 2009. Check the license (Pennsylvania 84-019960, 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
- Gretchen Mathieu
- Credential
- PH.D.
- Primary taxonomy
- Counseling Psychologist 103TC1900X
- License number
- 84-019960 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3900 City Line Ave, Philadelphia, PA 19131
- Phone
- (215) 878-3052
- Enumerated
- Aug 15, 2009
- Record last updated
- Aug 20, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest counseling psychologist records → All 368 in Pennsylvania → Look up another NPI →
Verify Gretchen Mathieu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license 84-019960Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gretchen Mathieu among 368 counseling psychologist records in Pennsylvania
Gretchen Mathieu, PH.D. is one of 368 counseling psychologist records with a practice address in Pennsylvania. 7% 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 2009, is newer than 49% of them.
- NPI issued2009 · 49% of these records are older, 49% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2009 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC1900X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Counseling Psychologist providers in Pennsylvania
There are 368 counseling psychologist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 368 in Pennsylvania → Every provider in Philadelphia → Counseling Psychologist nationwide →
The 8 counseling psychologist records with the nearest ZIP codes
- David GlassmanPhiladelphia, PA 191311336326982
- Michael SturgisPhiladelphia, PA 191311467935874
- Soumya Madabhushi, PHDPhiladelphia, PA 191301306068481
- Philip Rutter, PH.D.Philadelphia, PA 191301104178680
- Melissa Genn, MS, LBSPhiladelphia, PA 191281902394299
- Michael Gray, PH.D.Philadelphia, PA 191281891865382
- Tana CarpenterPhiladelphia, PA 191411578220364
- Laurene FinleyPhiladelphia, PA 191211831548726
Common questions
What is Gretchen Mathieu, PH.D.'s NPI number?
Gretchen Mathieu, PH.D.'s National Provider Identifier (NPI) is 1982836508, issued on Aug 15, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen Mathieu, PH.D. located?
The NPPES record lists a practice address at 3900 City Line Ave, Philadelphia, PA, 19131. Phone: (215) 878-3052. Providers update this record themselves, so call before visiting.
How can I verify Gretchen Mathieu, PH.D.'s license?
NPPES lists Pennsylvania license number 84-019960, 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.