NPPES file of Aug 9, 2026

Gregory Irving Mack, PH.D.

Clinical Psychologist · Yorktown Heights, NY

Gregory Irving Mack, PH.D. is a clinical psychologist with a practice address in Yorktown Heights, New York, and NPI 1669523106, issued on Jan 12, 2007. Check the license (New York 016597, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669523106
Name
Gregory Irving Mack
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
016597 NY
Self-reported in NPPES; status is on the state search
Practice location
345 Kear St, Yorktown Heights, NY 10598
Phone
(845) 282-3367
Enumerated
Jan 12, 2007
Record last updated
Feb 25, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(914) 743-1613
Medicaid ID
03577942 NY
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 345 Kear St

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

  1. Gale Bayer, LCSWClinical Social Worker1861549073
  2. Elizabeth Burk, PH.D.Psychologist1154467785

Verify Gregory Irving Mack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 016597
    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
Find the New York license search

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Gregory Irving Mack among 6,558 clinical psychologist records in New York

Gregory Irving Mack, PH.D. is one of 6,558 clinical psychologist records with a practice address in New York. 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 2007, is newer than 25% of them.

  • NPI issued2007 · 25% of these records are older, 57% newer
  • In a Medicare fileNo · 7% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2017 · 73% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in New York

There are 6,558 clinical psychologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Bernice Bernhard, PHDYorktown Heights, NY 105981194890194
  2. Kristy VanacoreYorktown Heights, NY 105981174685036
  3. Diane Ardito, PH DWhite Plains, NY 106011548286750
  4. Rachel Busman, PSYDValhalla, NY 105951013965672
  5. Melissa ChangWhite Plains, NY 106011750316667
  6. Randye Cohen, PH.D.White Plains, NY 106011598785156
  7. Randi Dublin, PH.D.Valhalla, NY 105951386962454
  8. Melinda Feldman, PH DValhalla, NY 105951790701613

Common questions

What is Gregory Irving Mack, PH.D.'s NPI number?

Gregory Irving Mack, PH.D.'s National Provider Identifier (NPI) is 1669523106, issued on Jan 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Irving Mack, PH.D. located?

The NPPES record lists a practice address at 345 Kear St, Yorktown Heights, NY, 10598. Phone: (845) 282-3367. Providers update this record themselves, so call before visiting.

How can I verify Gregory Irving Mack, PH.D.'s license?

NPPES lists New York license number 016597, 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.