DR. WILLIAM GREGORY MITCHELL MD
NPI 1538629621
Internal Medicine - Gastroenterology in Bronx, NY
About Dr. William Gregory Mitchell Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM GREGORY MITCHELL MD (NPI 1538629621) is an individual gastroenterology provider in Bronx, New York, licensed in New York (314628) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2019).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. William Gregory Mitchell Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Montefiore Medical Center
Acute Care Hospitals · Bronx, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10467 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BRONX, NY 10467
BRONX, NY 10467
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 William Mitchell's NPI number?
The NPI number for William Mitchell is 1538629621. It was assigned to this individual provider in the NPPES registry on March 23, 2019.
Where is William Mitchell located?
William Mitchell practices at 111 E 210th St, Bronx, NY 10467. The listed phone number is (718) 920-4321.
What is William Mitchell's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is William Mitchell enrolled in Medicare?
Yes. William Mitchell is registered in the Medicare PECOS enrollment system.
Is William Mitchell affiliated with any hospitals?
According to CMS data, William Mitchell is affiliated with Montefiore Medical Center.
When was this NPI record last updated?
The NPPES record for William Mitchell was last updated on December 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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. William Gregory Mitchell, MD · NPI 1538629621
Gastroenterology physician in Bronx, New York. Individual provider, active in the CMS NPPES registry since March 23, 2019.
## Identity
- **NPI:** 1538629621 (Entity type: Individual)
- **Enumerated:** March 23, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 314628 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 111 E 210TH ST, Bronx, NY 10467-2401
- **Phone:** (718) 920-4321
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Albert Einstein College Of Medicine Of Yeshiva University, class of 2019
## Record status
- **NPPES last updated:** December 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1538629621) · Data from the CMS NPPES public registry.