Gary M. Freudenthal, PSYD
Clinical Psychologist · Old Saybrook, CT
Gary M. Freudenthal, PSYD is a clinical psychologist with a practice address in Old Saybrook, Connecticut, and NPI 1518963784, issued on Jun 22, 2005. Check the license (Connecticut 001964, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gary M. Freudenthal
- Credential
- PSYD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 001964 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 Research Pkwy, Old Saybrook, CT 06475
- Phone
- (800) 370-3651
- Enumerated
- Jun 22, 2005
- Record last updated
- Jul 27, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (860) 510-0020
- Medicare enrollment
- Enrolled (PECOS I20211202002821); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,114 in Connecticut → Look up another NPI →
Also registered at 20 Research Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danil AnisimovPsychiatric/Mental Health Nurse Practitioner1114150984
- Antoinette Antonopoulos, LICSWClinical Social Worker1952565533
- Alberta Baccari, LCSWClinical Social Worker1437344520
- Cheryl Begg, LCSWClinical Social Worker1467736066
- Maria Belval, LCSWClinical Social Worker1073528931
- Maggie Black, PSYDClinical Psychologist1285912550
Verify Gary M. Freudenthal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 001964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- I-Bos Counseling Center, LLCCape Coral, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary M. Freudenthal among 1,114 clinical psychologist records in Connecticut
Gary M. Freudenthal, PSYD 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. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated1992 · median 2000 among the 294 with a school on file
- Record last updated2007 · 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).
17 clinical psychologist records list a practice address in Old Saybrook
They are 17 of the 308 NPPES records with a practice address in Old Saybrook, and 1,114 clinical psychologist records in Connecticut.
All 1,114 in Connecticut → Every provider in Old Saybrook → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Maggie Black, PSYDOld Saybrook, CT 064751285912550
- David Bonanno, PSYDOld Saybrook, CT 064751780843540
- Douglas Dufore, PHDOld Saybrook, CT 064751174607113
- Lisa Galasso, PH.D.Old Saybrook, CT 064751720210925
- Leonard Guitar, PSY.D.Old Saybrook, CT 064751164570339
- Cheryl Henderson, PSYDOld Saybrook, CT 064751851520159
- Margaret Lewman, PH.D.Old Saybrook, CT 064751356448500
- Joanne Petursson, PSY.D.Old Saybrook, CT 064751790185270
Common questions
What is Gary M. Freudenthal, PSYD's NPI number?
Gary M. Freudenthal, PSYD's National Provider Identifier (NPI) is 1518963784, issued on Jun 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gary M. Freudenthal, PSYD located?
The NPPES record lists a practice address at 20 Research Pkwy, Old Saybrook, CT, 06475. Phone: (800) 370-3651. Providers update this record themselves, so call before visiting.
How can I verify Gary M. Freudenthal, PSYD's license?
NPPES lists Connecticut license number 001964, 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. 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.