NPPES file of Aug 9, 2026

Leonard Joel Guedalia, PH.D.

Psychologist · Bethesda, MD

Leonard Joel Guedalia, PH.D. is a psychologist with a practice address in Bethesda, Maryland, and NPI 1720368590, issued on Aug 24, 2011. Check the license (Maryland 01512, as entered in NPPES) with the Maryland 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
1720368590
Name
Leonard Joel Guedalia
Credential
PH.D.
Primary taxonomy
Psychologist 103T00000X
License number
01512 MD
Self-reported in NPPES; status is on the state search
Practice location
4400 E West Hwy, Bethesda, MD 20814
Phone
(301) 907-8995
Enumerated
Aug 24, 2011
Record last updated
Sep 27, 2011 (not updated in 15 years: call before relying on the address or phone)
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 4400 E West Hwy

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

  1. Susan Abrams, LCSW-CMental Health Counselor1710164579
  2. Nancy Arons, LCSWClinical Social Worker1942423058
  3. Goli Bellinger, M.S.WClinical Social Worker1164726980
  4. Jack Blaine, M.D.Psychiatry Physician1720139199
  5. Alison Carelli, LCSW-CClinical Social Worker1033664669
  6. Joan Cooney, LCSW-CClinical Social Worker1922122597

Verify Leonard Joel Guedalia in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 01512
    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 Maryland license search

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77 psychologist records list a practice address in Bethesda

They are 77 of the 7,245 NPPES records with a practice address in Bethesda, and 1,183 psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other psychologist records in Maryland

  1. Anthony Abbondandolo, PHDBaltimore, MD1174676233
  2. Tarila AbbottBaltimore, MD1255997466
  3. Reji Abhilash, PH.DRockville, MD1346743739
  4. Ira Abrams, PH.D.Garrett Park, MD1497895767
  5. Anne Adelman, PH.D.Chevy Chase, MD1184254328
  6. Ahmed AdetolaNottingham, MD1003529520
  7. Alexandra Agiliga, PHDRiverdale Park, MD1861223315
  8. Jonathan AhunaBaltimore, MD1780190843
  9. Christopher AladeBaltimore, MD1205316783
  10. Nicole Albertson, PSY.D.Frederick, MD1306069430

Common questions

What is Leonard Joel Guedalia, PH.D.'s NPI number?

Leonard Joel Guedalia, PH.D.'s National Provider Identifier (NPI) is 1720368590, issued on Aug 24, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Leonard Joel Guedalia, PH.D. located?

The NPPES record lists a practice address at 4400 E West Hwy, Bethesda, MD, 20814. Phone: (301) 907-8995. Providers update this record themselves, so call before visiting.

How can I verify Leonard Joel Guedalia, PH.D.'s license?

NPPES lists Maryland license number 01512, as entered by the provider. Search the Maryland 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.