Registry data as of Aug 27, 2026

Leslie Gellis, PH.D

Cognitive & Behavioral Psychologist · Syracuse, NY

Leslie Gellis, PH.D is a cognitive & behavioral psychologist with a practice address in Syracuse, New York, and NPI 1336552959, issued on Jun 11, 2014. Check the license 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1336552959
Name
Leslie Gellis
Credential
PH.D
Primary taxonomy
Cognitive & Behavioral Psychologist 103TB0200X
Practice location
804 University Ave, Syracuse, NY 13210
Phone
(315) 443-3595
Enumerated
Jun 11, 2014
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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Verify Leslie Gellis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Cognitive & Behavioral Psychologist providers in New York

There are 314 cognitive & behavioral psychologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 314 in New York → Every provider in Syracuse →

Other cognitive & behavioral psychologist records in New York

  1. Jennifer Abbey, PH.D.Rye, NY1750645917
  2. Estee Acobas, PSY.D.Cedarhurst, NY1841964673
  3. Naomi Adler, PSY.D.White Plains, NY1053443648
  4. Karen Aizaga, PH.D.New York, NY1689120495
  5. Shira Alani, PSY.D.New York, NY1811333446
  6. Jayme Albin, MA, PH.DNew York, NY1669704391
  7. Susan Alessi, PHDBuffalo, NY1669466017
  8. Elvira Aletta, PHDAmherst, NY1497749600
  9. Jennifer Allen, PHDBrooklyn, NY1730519216
  10. Cecily Anders, PSY.D.New York, NY1811439656

Common questions

What is Leslie Gellis, PH.D's NPI number?

Leslie Gellis, PH.D's National Provider Identifier (NPI) is 1336552959, issued on Jun 11, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Gellis, PH.D located?

The NPPES record lists a practice address at 804 University Ave, Syracuse, NY, 13210. Phone: (315) 443-3595. Providers update this record themselves, so call before visiting.

How can I verify Leslie Gellis, PH.D's license?

Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.