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NATHAN ROSENFELD M.D. PC
NPI 1083911879
Internal Medicine - Gastroenterology in New Rochelle, NY

Active since February 14, 2011
110 LOCKWOOD AVE, NEW ROCHELLE, NY 10801(914) 636-4030(914) 636-4095 Get Directions Write a Review

NPPES record last updated: February 14, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nathan Rosenfeld M.d. Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATHAN ROSENFELD M.D. PC (NPI 1083911879) is a healthcare organization registered as a gastroenterology in New Rochelle, New York and active in the NPI registry since February 2011. The organization lists Nathan Samuel Rosenfeld, President, as its authorized official.

NPPES Registry Identity

NPI1083911879
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameNATHAN ROSENFELD M.D. PC
Location Address110 LOCKWOOD AVENew Rochelle, NY 10801-5028
Mailing Address110 Lockwood AveNew Rochelle, NY 10801-5028 · (914) 636-4030 · Fax (914) 636-4095
Phone(914) 636-4030
Fax(914) 636-4095
Organization SubpartNo
Authorized OfficialNathan Samuel RosenfeldPresident · (914) 636-4030
Enumeration DateFebruary 14, 2011
✔ NPI 1083911879 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NY · 143751
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
110 LOCKWOOD AVE, New Rochelle, NY 10801
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Other Identifiers 3

Medicare UPINB14946NY
Medicare PIN46D661NY
Medicaid01389028NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nathan Rosenfeld M.d. Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Nathan Rosenfeld M.D. PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Nathan Rosenfeld, M.D.
Gastroenterology
NPI 1467535120
110 LOCKWOOD AVE
New Rochelle, NY 10801
(914) 636-4030
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Nathan Rosenfeld M.D. PC's NPI number?

The NPI number for Nathan Rosenfeld M.D. PC is 1083911879. It was assigned to this organization in the NPPES registry on February 14, 2011.

Where is Nathan Rosenfeld M.D. PC located?

Nathan Rosenfeld M.D. PC is located at 110 Lockwood Ave, New Rochelle, NY 10801. The listed phone number is (914) 636-4030.

What is Nathan Rosenfeld M.D. PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Nathan Rosenfeld M.D. PC enrolled in Medicare?

Yes. Nathan Rosenfeld M.D. PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nathan Rosenfeld M.D. PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Gastroenterology) reassigns their Medicare billing to Nathan Rosenfeld M.D. PC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Nathan Rosenfeld M.D. PC was last updated on February 14, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.