Martin Harold Klein, PH.D.
Clinical Psychologist · Westport, CT
Martin Harold Klein, PH.D. is a clinical psychologist with a practice address in Westport, Connecticut, and NPI 1902820871, issued on Jul 26, 2006. Check the license (Connecticut 001909, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Martin Harold Klein
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 001909 CT
Self-reported in NPPES; status is on the state search - Practice location
- 64 Post RD W, Westport, CT 06880
- Phone
- (203) 915-0601
- Enumerated
- Jul 26, 2006
- Record last updated
- Jan 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 292-9845
- Medicare enrollment
- Enrolled (PECOS I20110303000232); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 64 Post RD W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Dieterich, PH.D.Psychologist1184642811
- Tara Levinson, PHDPsychologist1326731092
- Gwendolyn Lopez-Cohen, M.D.Child & Adolescent Psychiatry Physician1770782476
- Lara Singer, PSY.D.Clinical Psychologist1760151252
Verify Martin Harold Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 001909Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45 clinical psychologist records list a practice address in Westport
They are 45 of the 886 NPPES records with a practice address in Westport, and 1,114 clinical psychologist records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 45 in Westport → All 1,114 in Connecticut → Every provider in Westport →
Other clinical psychologist records in Connecticut
- Elizabeth AaronOld Greenwich, CT1124909981
- Deborah Abbott, PH.D.Guilford, CT1023223450
- Gina Abbott, PHDCheshire, CT1033402086
- William Abbott, PSY.DNorth Haven, CT1295991024
- Erica Abel, PH.D.West Haven, CT1982971222
- Jenna Adamowicz, PH.D.West Haven, CT1356271266
- Erin Adams, PSY.D..Westport, CT1760521728
- Lynette Adams, PH,D.West Haven, CT1346545472
- Patricia Adams, PH.DHartford, CT1336352004
- Michelle Albright, PHDWestport, CT1134525173
Common questions
What is Martin Harold Klein, PH.D.'s NPI number?
Martin Harold Klein, PH.D.'s National Provider Identifier (NPI) is 1902820871, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Martin Harold Klein, PH.D. located?
The NPPES record lists a practice address at 64 Post RD W, Westport, CT, 06880. Phone: (203) 915-0601. Providers update this record themselves, so call before visiting.
How can I verify Martin Harold Klein, PH.D.'s license?
NPPES lists Connecticut license number 001909, as entered by the provider. Search the Connecticut 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.