Gregory John Estadt, PSY.D.
Clinical Psychologist · Downingtown, PA
Gregory John Estadt, PSY.D. is a clinical psychologist with a practice address in Downingtown, Pennsylvania, and NPI 1740445261, issued on Jul 24, 2008. Check the license (Pennsylvania PS016426, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory John Estadt
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PS016426 PA
Self-reported in NPPES; status is on the state search - Practice location
- 273 W. Uchland Avenue, Downingtown, PA 19335
- Phone
- (610) 873-4748
- Enumerated
- Jul 24, 2008
- Record last updated
- Jul 24, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110727000727); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 2,597 in Pennsylvania → Look up another NPI →
Verify Gregory John Estadt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license PS016426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Estadt Psychological Services LLCPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory John Estadt among 2,597 clinical psychologist records in Pennsylvania
Gregory John Estadt, PSY.D. 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. Its NPI, issued in 2008, is newer than 46% of them.
- NPI issued2008 · 46% of these records are older, 49% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated2006 · median 2003 among the 707 with a school on file
- Record last updated2008 · 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).
14 clinical psychologist records list a practice address in Downingtown
They are 14 of the 564 NPPES records with a practice address in Downingtown, and 2,597 clinical psychologist records in Pennsylvania.
All 2,597 in Pennsylvania → Every provider in Downingtown → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Hema Babaria, PH.DDowningtown, PA 193351174113799
- Gregory Brasco, PSY.D.Downingtown, PA 193351902163371
- Jane Compton-Wendel, MADowningtown, PA 193351245566306
- Karen Cote, PSY.DDowningtown, PA 193351477975472
- Joseph Cowell, MADowningtown, PA 193351447425442
- Ashley GilbertDowningtown, PA 193351205589249
- Eric Haas, PSY.D.Downingtown, PA 193351093028961
- Jeannie Lerch, PSYD.Downingtown, PA 193351619424025
Common questions
What is Gregory John Estadt, PSY.D.'s NPI number?
Gregory John Estadt, PSY.D.'s National Provider Identifier (NPI) is 1740445261, issued on Jul 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Gregory John Estadt, PSY.D. located?
The NPPES record lists a practice address at 273 W. Uchland Avenue, Downingtown, PA, 19335. Phone: (610) 873-4748. Providers update this record themselves, so call before visiting.
How can I verify Gregory John Estadt, PSY.D.'s license?
NPPES lists Pennsylvania license number PS016426, 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. 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.