Robert Joseph Gassman, R.D.
Registered Dietitian · Old Saybrook, CT
Robert Joseph Gassman, R.D. is a registered dietitian with a practice address in Old Saybrook, Connecticut, and NPI 1992857130, issued on Jan 17, 2007. Check the license (Connecticut 03-447940, 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
- Robert Joseph Gassman
- Credential
- R.D.
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 03-447940 CT
Self-reported in NPPES; status is on the state search - Practice location
- 929 Boston Post RD, Old Saybrook, CT 06475
- Phone
- (860) 388-9393
- Enumerated
- Jan 17, 2007
- Record last updated
- Jul 14, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (860) 388-9370
- Entity
- Type 1 · individual
Also registered at 929 Boston Post RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Joseph Gassman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 03-447940Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Registered Dietitian providers in Connecticut
There are 824 registered dietitian records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other registered dietitian records in Connecticut
- Kirsten AckermanNew Haven, CT1396298485
- Emily AcriNew Haven, CT1962245639
- Natalie Adamson, RD,CD-NTorrington, CT1942585054
- Merril Adelman, R.D.Norwalk, CT1801125471
- Maja Aganovic, RD, LDNNew Haven, CT1356142418
- Susan Agnes, RDEast Granby, CT1518225051
- Whitney Ahneman, M.S. R.D.Stamford, CT1861785545
- Eekra Ahsan, RDGlastonbury, CT1780451229
- Nora Ainsworth, MS, RDN, CDNSouthington, CT1851891634
- Rachel Aiudi, DCN, RDNNew Haven, CT1164303889
Common questions
What is Robert Joseph Gassman, R.D.'s NPI number?
Robert Joseph Gassman, R.D.'s National Provider Identifier (NPI) is 1992857130, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert Joseph Gassman, R.D. located?
The NPPES record lists a practice address at 929 Boston Post RD, Old Saybrook, CT, 06475. Phone: (860) 388-9393. Providers update this record themselves, so call before visiting.
How can I verify Robert Joseph Gassman, R.D.'s license?
NPPES lists Connecticut license number 03-447940, 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.