NPPES file of Aug 9, 2026

Denise Dixon, PH.D.

Clinical Psychologist · Port Jefferson, NY

Denise Dixon, PH.D. is a clinical psychologist with a practice address in Port Jefferson, New York, and NPI 1457394983, issued on Jun 13, 2006. Check the license (New York 015481, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1457394983
Name
Denise Dixon
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
015481 NY
Self-reported in NPPES; status is on the state search
Practice location
646 Main St, Port Jefferson, NY 11777
Phone
(631) 456-9426
Enumerated
Jun 13, 2006
Record last updated
Oct 27, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
02794076 NY
Medicare enrollment
Enrolled (PECOS I20061202000095); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 646 Main St

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

  1. Samantha AmodeoSocial Worker1164363487
  2. Deanna Baker, LMSWSocial Worker1720923451
  3. Cathleen Donaldson, LCSWSocial Worker1447366315
  4. Frank Farrell, PH.DClinical Psychologist1790325496
  5. Jagdish Gidwani, M.D.Psychiatry Physician1962557629
  6. Debra Kingsley, MENTAL HEALTH COUNSEMental Health Counselor1528119294

Verify Denise Dixon 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 015481
    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

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

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Bills Medicare through one group practice

  1. St Charles Hospital CorpPort Jefferson, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Denise Dixon among 6,558 clinical psychologist records in New York

Denise Dixon, 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. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 75% newer
  • In a Medicare fileYes · 7% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1997 · median 1996 among the 1,251 with a school on file
  • Record last updated2011 · 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).

12 clinical psychologist records list a practice address in Port Jefferson

They are 12 of the 983 NPPES records with a practice address in Port Jefferson, and 6,558 clinical psychologist records in New York.

The 8 clinical psychologist records with the nearest ZIP codes

  1. William Bennison, PH.D.Port Jefferson, NY 117771962489153
  2. Michael Cardillo, PH.D.Port Jefferson, NY 117771184788077
  3. Jennifer Donnelly-Greenberg, PH.D.Port Jefferson, NY 117771346770062
  4. Frank Farrell, PH.DPort Jefferson, NY 117771790325496
  5. Barry Greenberg, PH.D.Port Jefferson, NY 117771770607517
  6. Becca Ilvento, PSY.D.Port Jefferson, NY 117771225675234
  7. Faith Lennon, PHDPort Jefferson, NY 117771649364787
  8. Fredric Levine, PH.D.Port Jefferson, NY 117771144462920

Common questions

What is Denise Dixon, PH.D.'s NPI number?

Denise Dixon, PH.D.'s National Provider Identifier (NPI) is 1457394983, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Denise Dixon, PH.D. located?

The NPPES record lists a practice address at 646 Main St, Port Jefferson, NY, 11777. Phone: (631) 456-9426. Providers update this record themselves, so call before visiting.

How can I verify Denise Dixon, PH.D.'s license?

NPPES lists New York license number 015481, 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. 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.