Robert Alan Gelfand, M.D.
Endocrinology, Diabetes & Metabolism Physician · New Haven, CT
Robert Alan Gelfand, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in New Haven, Connecticut, and NPI 1952338147, issued on Jun 26, 2006. Check the license (Connecticut 023205, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Robert Alan Gelfand
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 023205 CT
Self-reported in NPPES; status is on the state search - Practice location
- 17 Hillhouse Ave, New Haven, CT 06511
- Phone
- (203) 432-0076
- Enumerated
- Jun 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (203) 432-7289
- Medicare enrollment
- Enrolled (PECOS I20040430000508); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 214 in Connecticut → Look up another NPI →
Also registered at 17 Hillhouse Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Blanton, M.D.Pediatric Hospice and Palliative Medicine Physician1972710614
- Lynda Boynton, PTSpecialist1871734020
Verify Robert Alan Gelfand in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 023205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
25 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $120.27
4 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hospital Medicine Associates LLCNew London, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Alan Gelfand among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Robert Alan Gelfand, M.D. is one of 214 endocrinology, diabetes & metabolism physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1978 · median 2004 among the 145 with a school on file
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Connecticut
There are 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in New Haven → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Leigh Berrien, APRNNew Haven, CT 065111134998230
- Surani Fernando, MDNew Haven, CT 065111750355137
- Philip Goldberg, MDNew Haven, CT 065111659417889
- Richard Kibbey, MDNew Haven, CT 065111598704272
- Adam Mayerson, M.D.New Haven, CT 065111457451015
- Irina Rosewater, M.D.New Haven, CT 065111477793529
- Olga Sakharova, MDNew Haven, CT 065111528092590
- Kai Yang, MDNew Haven, CT 065111093851321
Common questions
What is Robert Alan Gelfand, M.D.'s NPI number?
Robert Alan Gelfand, M.D.'s National Provider Identifier (NPI) is 1952338147, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Alan Gelfand, M.D. located?
The NPPES record lists a practice address at 17 Hillhouse Ave, New Haven, CT, 06511. Phone: (203) 432-0076. Providers update this record themselves, so call before visiting.
How can I verify Robert Alan Gelfand, M.D.'s license?
NPPES lists Connecticut license number 023205, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Alan Gelfand, M.D. prescribe under Medicare Part D?
In 2024, Robert Alan Gelfand, M.D. had 25 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions 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.