DR. ROBERT ALAN GELFAND M.D.
NPI 1952338147
Internal Medicine - Endocrinology, Diabetes & Metabolism in New Haven, CT
About Dr. Robert Alan Gelfand M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT ALAN GELFAND M.D. (NPI 1952338147) is an individual endocrinology, diabetes & metabolism provider in New Haven, Connecticut, licensed in Connecticut (023205) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (1978).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Robert Alan Gelfand M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Robert Gelfand reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06511
- Reassigned Medicare billing, Connecticut enrollment
- 149 clinicians in this Medicare group
Springfield, MA 01151
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Ipc Hospitalists Of New England PC
- 88 clinicians in this Medicare group
Baton Rouge, LA 70816
- Reassigned Medicare billing, Connecticut enrollment
- 127 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06511 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW HAVEN, CT 06511
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Robert Gelfand's NPI number?
The NPI number for Robert Gelfand is 1952338147. It was assigned to this individual provider in the NPPES registry on June 26, 2006.
Where is Robert Gelfand located?
Robert Gelfand practices at 17 Hillhouse Ave, New Haven, CT 06511. The listed phone number is (203) 432-0076.
What is Robert Gelfand's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Robert Gelfand enrolled in Medicare?
Yes. Robert Gelfand is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Robert Gelfand's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Gelfand reassigns Medicare benefits to 3 organizations: Yale University (New Haven, CT), Ipc Hospitalists Of New England, P.C. (Springfield, MA) and Hospital Medicine Associates LLC (Baton Rouge, LA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Gelfand's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Robert Gelfand was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Robert Alan Gelfand, M.D. · NPI 1952338147
Endocrinology, Diabetes & Metabolism physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since June 26, 2006.
## Identity
- **NPI:** 1952338147 (Entity type: Individual)
- **Enumerated:** June 26, 2006
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 023205 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 17 HILLHOUSE AVE, New Haven, CT 06511-6815
- **Phone:** (203) 432-0076 · **Fax:** (203) 432-7289
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Yale University (NPI 1093862740, New Haven, CT); Ipc Hospitalists Of New England, P.C. (NPI 1659555266, Springfield, MA); Hospital Medicine Associates LLC (NPI 1093758781, Baton Rouge, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Yale University School Of Medicine, class of 1978
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN D83588 (CT)
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Source: [NPI Profile](https://npiprofile.com/npi/1952338147) · Data from the CMS NPPES public registry.