ROBERT MENDELSOHN M.D.
NPI 1902822109
Internal Medicine - Gastroenterology in Carmel, NY

Q: What is Robert Mendelsohn's NPI number?

The NPI number for Robert Mendelsohn is 1902822109. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Q: What is Robert Mendelsohn's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Robert Mendelsohn was last updated on May 9, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since July 14, 2006PECOS Enrolled

672 STONELEIGH AVE, CARMEL, NY 10512(845) 279-7000(845) 279-4695 Get Directions Write a Review

NPPES record last updated: May 9, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Robert Mendelsohn M.d. NPPES

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

ROBERT MENDELSOHN M.D. (NPI 1902822109) is an individual gastroenterology provider in Carmel, New York, licensed in New York (172727) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1902822109

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameROBERT MENDELSOHNCredential: M.D.

Location Address672 STONELEIGH AVECarmel, NY 10512-4634

Mailing Address110 S Bedford RdMount Kisco, NY 10549-3446 · (914) 241-1050 · Fax (914) 242-1516

Phone(845) 279-7000

Fax(845) 279-4695

Sole ProprietorNo

Enumeration DateJuly 14, 2006

Last NPPES UpdateMay 9, 2017

✔ NPI 1902822109 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 · 172727

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.

672 STONELEIGH AVE, Carmel, NY 10512

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Other Identifiers 3

Medicare PINA400151768NY

Medicare UPINF20311NY

Medicaid01384550NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert Mendelsohn M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Robert Mendelsohn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Optum Medical Care, P.C.

13 mi

Cardiovascular Disease

90 SOUTH BEDFORD RD, MT KISCO MEDICAL GROUP PC
Mount Kisco, NY 10549

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Optum Medical Care PC
1,601 clinicians in this Medicare group

NPI 1982643003 (914) 241-1050

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 10512 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$141.77 typical visit price

range $61.88 – $187.05

Typical copayment $35.44 (range $15.47 – $46.76)

Most-billed visit code 99204

Established Patient

$108.56 typical visit price

range $19.92 – $151.94

Typical copayment $27.14 (range $4.98 – $37.98)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. IRA ALAN SCHWARTZ M.D.

Internal Medicine (Cardiovascular Disease)

672 STONELEIGH AVE, SUITE C112
CARMEL, NY 10512

Putnam County (845) 279-2900

ANDREW S GUTTERMAN M.D.

Dermatology

672 STONELEIGH AVE
CARMEL, NY 10512

Putnam County (845) 279-2000

GEORGIA MOLLY CLOSE M.D.

Internal Medicine (Gastroenterology)

672 STONELEIGH AVE
CARMEL, NY 10512

Putnam County (845) 279-2000

STONELEIGH MEDI-SPA, INC.

Clinic/Center (Radiology, Mobile)

672 STONELEIGH AVE, STE C-126
CARMEL, NY 10512

Putnam County (845) 225-5300

DR. KISHORE N RANADE MD

Psychiatry & Neurology (Neurology)

672 STONELEIGH AVE
CARMEL, NY 10512

Putnam County (845) 279-9000

GLENN HOWARD BOYAR M.D.

Internal Medicine (Cardiovascular Disease)

672 STONELEIGH AVE
CARMEL, NY 10512

Putnam County (845) 279-2000

IRA A. SCHWARTZ, M.D., P.C.

Internal Medicine (Cardiovascular Disease)

672 STONELEIGH AVE, SUITE C112
CARMEL, NY 10512

Putnam County (845) 279-2900

LOUIS AURISICCHIO M.D.

Internal Medicine (Gastroenterology)

672 STONELEIGH AVE
CARMEL, NY 10512

Putnam County (845) 279-2000

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 Mendelsohn's NPI number?

The NPI number for Robert Mendelsohn is 1902822109. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Robert Mendelsohn located?

Robert Mendelsohn practices at 672 Stoneleigh Ave, Carmel, NY 10512. The listed phone number is (845) 279-7000.

What is Robert Mendelsohn's specialty?

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

Is Robert Mendelsohn enrolled in Medicare?

Yes. Robert Mendelsohn is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Mendelsohn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Mendelsohn reassigns Medicare benefits to Optum Medical Care, P.C. (Mount Kisco, NY). The 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 Mendelsohn'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 Mendelsohn was last updated on May 9, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.