DR. ELIOT MARC GELWAN MD
NPI 1700952702
Psychiatry & Neurology - Psychiatry in Belmont, MA
About Dr. Eliot Marc Gelwan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ELIOT MARC GELWAN MD (NPI 1700952702) is an individual psychiatry provider in Belmont, Massachusetts, licensed in Massachusetts (53266) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Eliot Marc Gelwan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Eliot Gelwan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Belmont, MA 02478
- Reassigned Medicare billing, Massachusetts enrollment
- 422 clinicians in this Medicare group
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 451 clinicians in this Medicare group
Bloomfield, NM 87413
- Reassigned Medicare billing, Texas enrollment
- 572 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02478 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Eliot Gelwan's NPI number?
The NPI number for Eliot Gelwan is 1700952702. It was assigned to this individual provider in the NPPES registry on November 28, 2006.
Where is Eliot Gelwan located?
Eliot Gelwan practices at 115 Mill St # Ab335, Belmont, MA 02478. The listed phone number is (617) 855-3872.
What is Eliot Gelwan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Eliot Gelwan enrolled in Medicare?
Yes. Eliot Gelwan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Eliot Gelwan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eliot Gelwan reassigns Medicare benefits to 3 organizations: The Mclean Hospital Corporation (Belmont, MA), Emerson Practice Associates, Inc. (Concord, MA) and Dhhs, Phs, Naihs, Shiprock Hospital (Bloomfield, NM). 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 Eliot Gelwan'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 Eliot Gelwan was last updated on October 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Eliot Marc Gelwan, MD · NPI 1700952702
Psychiatry physician in Belmont, Massachusetts. Individual provider, active in the CMS NPPES registry since November 28, 2006.
## Identity
- **NPI:** 1700952702 (Entity type: Individual)
- **Enumerated:** November 28, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 53266 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 115 MILL ST # AB335, Belmont, MA 02478-1048
- **Phone:** (617) 855-3872
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): The Mclean Hospital Corporation (NPI 1114979580, Belmont, MA); Emerson Practice Associates, Inc. (NPI 1508020199, Concord, MA); Dhhs, Phs, Naihs, Shiprock Hospital (NPI 1760427587, Bloomfield, NM) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 18, 2022
- **Other identifiers:** Medicaid 3014827 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1700952702) · Data from the CMS NPPES public registry.