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IRIS WERTHEIM M.D.
NPI 1417938192
Obstetrics & Gynecology - Gynecologic Oncology in Mount Kisco, NY

Active since November 09, 2005PECOS EnrolledAccepts Medicare Assignment
400 E MAIN ST, CAREMOUNT MEDICAL, PC, MOUNT KISCO, NY 10549(914) 241-1050(914) 666-2513 Get Directions Write a Review

NPPES record last updated: September 9, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Iris Wertheim M.d. NPPES

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

IRIS WERTHEIM M.D. (NPI 1417938192) is an individual gynecologic oncology provider in Mount Kisco, New York, licensed in New York (202735-1) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1989).

NPPES Registry Identity

NPI1417938192
Entity TypeIndividualFemale
Primary Taxonomy207VX0201X
Provider Legal NameIRIS WERTHEIMCredential: M.D.
Location Address400 E MAIN ST, CAREMOUNT MEDICAL, PCMount Kisco, NY 10549-3417
Mailing Address110 S Bedford Rd, Caremount Medical, PcMount Kisco, NY 10549-3446 · (914) 241-1050 · Fax (914) 666-2513
Phone(914) 241-1050
Fax(914) 666-2513
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1989
Enumeration DateNovember 9, 2005
Last NPPES UpdateSeptember 9, 2016
✔ NPI 1417938192 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
Licenses✔ Licensed in NY · 202735-1✔ Licensed in CT · 039006
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
400 E MAIN ST, Mount Kisco, NY 10549
Open in Google Maps ↗

Other Identifiers 7

Other010202735NY03NY · Blue Cross Blue Shield
Medicare UPING37456CT
Medicaid01685987NY
Other50U06GW701NY · Medicare Id -type Unspeci
OtherP00299044NY · Railroad Medicare
OtherA400071866NY · Medicar Ptan
Medicare PIN50U061NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Iris Wertheim M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911960083
PECOS Enrollment IDI20041215001040
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 Reassignments

2

Medicare enrollment records show Iris Wertheim reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Optum Medical Care, P.C.
0.3 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
Open Door Family Medical Center, Inc.
0.9 mi
Federally Qualified Health Center (FQHC)
30 W MAIN ST
Mount Kisco, NY 10549
  • Reassigned Medicare billing, New York enrollment
  • 149 clinicians in this Medicare group
NPI 1629237151 (914) 666-3272

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 10549 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
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

MS. MICHAEL ARLIA MD
Anesthesiology
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL
MOUNT KISCO, NY 10549
Westchester County (914) 666-1691
DR. HERBERTH BALSELLS D.O.
Emergency Medicine
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1254
SABINA MUSOVIC SEFOVIC MD
Anesthesiology (Critical Care Medicine)
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1200
DR. ANDREW MONIK MOGGA MD
Student in an Organized Health Care Education/Training Program
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1931
MAZEN T KHALIFEH MD
Pediatrics (Neonatal-Perinatal Medicine)
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL
MOUNT KISCO, NY 10549
Westchester County (914) 666-1862
NANDINI ANANDU MD
Internal Medicine
400 E MAIN ST, NORTHERN WESTCHESTER HOSPITAL
MOUNT KISCO, NY 10549
Westchester County (914) 666-1200
ANISHA DUVVI
Student in an Organized Health Care Education/Training Program
400 E MAIN ST
MOUNT KISCO, NY 10549
Westchester County (914) 666-1931
KAREN S ARTHUR MD
Surgery
400 E MAIN ST, NWH NORTH BUILDING 1ST FLOOR
MOUNT KISCO, NY 10549
Westchester County (914) 242-7640

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 Iris Wertheim's NPI number?

The NPI number for Iris Wertheim is 1417938192. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Where is Iris Wertheim located?

Iris Wertheim practices at 400 E Main St Caremount Medical, PC, Mount Kisco, NY 10549. The listed phone number is (914) 241-1050.

What is Iris Wertheim's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Iris Wertheim enrolled in Medicare?

Yes. Iris Wertheim is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Iris Wertheim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Iris Wertheim reassigns Medicare benefits to 2 organizations: Optum Medical Care, P.C. (Mount Kisco, NY) and Open Door Family Medical Center, Inc. (Mount Kisco, 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 Iris Wertheim'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 Iris Wertheim was last updated on September 9, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.