MEHMET ESAT DEMIRHAN MD
NPI 1619504719
Hospitalist in Boston, MA
About Mehmet Esat Demirhan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEHMET ESAT DEMIRHAN MD (NPI 1619504719) is an individual hospitalist provider in Boston, Massachusetts, licensed in Massachusetts (1016140) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Hospital Plymouth, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mehmet Esat Demirhan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Mehmet Demirhan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1497151773 (Massachusetts)
- 1,006 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 clinicians in this Medicare group
Bronx, NY 10467
- Reassigned Medicare billing, New York enrollment
- 5,251 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 5
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beth Israel Deaconess Hospital Plymouth
Acute Care Hospitals · Plymouth, MAMontefiore Medical Center
Acute Care Hospitals · Bronx, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02215
BOSTON, MA 02215
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 Mehmet Demirhan's NPI number?
The NPI number for Mehmet Demirhan is 1619504719. It was assigned to this individual provider in the NPPES registry on March 26, 2020.
Where is Mehmet Demirhan located?
Mehmet Demirhan practices at 375 Longwood Ave, Boston, MA 02215. The listed phone number is (617) 632-9755.
What is Mehmet Demirhan's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Mehmet Demirhan enrolled in Medicare?
Yes. Mehmet Demirhan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mehmet Demirhan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mehmet Demirhan reassigns Medicare benefits to 3 organizations: Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Montefiore Medical Center (Bronx, NY). 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 Mehmet Demirhan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mehmet Demirhan accept?
Health plans from Taro Health list Mehmet Demirhan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mehmet Demirhan affiliated with any hospitals?
According to CMS data, Mehmet Demirhan is affiliated with Beth Israel Deaconess Hospital Plymouth and Montefiore Medical Center.
When was this NPI record last updated?
The NPPES record for Mehmet Demirhan was last updated on June 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mehmet Esat Demirhan, MD · NPI 1619504719
Hospitalist physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 26, 2020.
## Identity
- **NPI:** 1619504719 (Entity type: Individual)
- **Enumerated:** March 26, 2020
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 1016140 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 375 LONGWOOD AVE, Boston, MA 02215-5395
- **Phone:** (617) 632-9755
## 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): Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1952358533, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Montefiore Medical Center (NPI 1063525152, Bronx, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** June 29, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1619504719) · Data from the CMS NPPES public registry.