Martin Grebel, PH.D.
Clinical Psychologist · Madison, CT
Martin Grebel, PH.D. is a clinical psychologist with a practice address in Madison, Connecticut, and NPI 1982769667, issued on Dec 24, 2006. Check the license (Connecticut 000433, 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 Grebel
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 000433 CT
Self-reported in NPPES; status is on the state search - Practice location
- 21 Kingsbridge Way, Madison, CT 06443
- Phone
- (203) 605-7591
- Enumerated
- Dec 24, 2006
- Record last updated
- Mar 17, 2023
- Fax
- (860) 443-5990
- Medicare enrollment
- Enrolled (PECOS I20101210000630); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,114 in Connecticut → Look up another NPI →
Also registered at 21 Kingsbridge Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Irma Grebel, LCSWClinical Social Worker1063577740
Verify Martin Grebel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 000433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Martin Grebel among 1,114 clinical psychologist records in Connecticut
Martin Grebel, PH.D. is one of 1,114 clinical psychologist records with a practice address in Connecticut. 14% 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 70% newer
- In a Medicare fileNo · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated1970 · median 2000 among the 294 with a school on file
- Record last updated2023 · 72% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 clinical psychologist records list a practice address in Madison
They are 18 of the 371 NPPES records with a practice address in Madison, and 1,114 clinical psychologist records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,114 in Connecticut → Every provider in Madison → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Kathryn Berk, PH.D.Madison, CT 064431639267016
- Matthew Burg, PHDMadison, CT 064431508976721
- Deborah Crocker, PH.D.Madison, CT 064431659498509
- Connie Fanelli, PH.D.Madison, CT 064431518067313
- Barbara Greenspan, PSYDMadison, CT 064431548544869
- Laura Jarett, PH. D.Madison, CT 064431205004819
- Julia King, PSY.D., MBAMadison, CT 064431801323571
- Dylan Kollman, PHDMadison, CT 064431316120835
Common questions
What is Martin Grebel, PH.D.'s NPI number?
Martin Grebel, PH.D.'s National Provider Identifier (NPI) is 1982769667, issued on Dec 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Martin Grebel, PH.D. located?
The NPPES record lists a practice address at 21 Kingsbridge Way, Madison, CT, 06443. Phone: (203) 605-7591. Providers update this record themselves, so call before visiting.
How can I verify Martin Grebel, PH.D.'s license?
NPPES lists Connecticut license number 000433, 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.