Gregory P. Ryan, PSY.D.
Psychologist · Miller Place, NY
Gregory P. Ryan, PSY.D. is a psychologist with a practice address in Miller Place, New York, and NPI 1144765850, issued on Jan 4, 2017. Check the license (New York 021145, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory P. Ryan
- Credential
- PSY.D.
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 021145 NY
Self-reported in NPPES; status is on the state search - Practice location
- 4 Sunset LN E, Miller Place, NY 11764
- Phone
- (516) 965-8792
- Enumerated
- Jan 4, 2017
- Record last updated
- Jan 4, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychologist records → All 5,045 in New York → Look up another NPI →
Verify Gregory P. Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 021145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory P. Ryan among 5,045 psychologist records in New York
Gregory P. Ryan, PSY.D. is one of 5,045 psychologist records with a practice address in New York. 6% 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 2017, is newer than 69% of them.
- NPI issued2017 · 69% of these records are older, 28% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 15% of these records are
- Record last updated2017 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 psychologist records list a practice address in Miller Place
They are 4 of the 292 NPPES records with a practice address in Miller Place, and 5,045 psychologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,045 in New York → Every provider in Miller Place → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Stacey Devaux, PSY.D.Miller Place, NY 117641154893550
- Nicole Keenan, PSY.D.Miller Place, NY 117641780010397
- Joseph Volpe, PHDMiller Place, NY 117641518729276
- Denise Bassin, PH.D.Medford, NY 117631497954721
- Lorie ClinninMedford, NY 117631427373653
- Thomas Diblasi, PHDMedford, NY 117631518572197
- Brittany ViskocMedford, NY 117631063131993
- Anton Armbruster, PH.D.Massapequa Park, NY 117621174703458
Common questions
What is Gregory P. Ryan, PSY.D.'s NPI number?
Gregory P. Ryan, PSY.D.'s National Provider Identifier (NPI) is 1144765850, issued on Jan 4, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Gregory P. Ryan, PSY.D. located?
The NPPES record lists a practice address at 4 Sunset LN E, Miller Place, NY, 11764. Phone: (516) 965-8792. Providers update this record themselves, so call before visiting.
How can I verify Gregory P. Ryan, PSY.D.'s license?
NPPES lists New York license number 021145, as entered by the provider. Search the New York 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.