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LOIS TUERK-MENDELSOHN M.D.
NPI 1366466146
Allergy & Immunology in Mount Kisco, NY

Active since July 26, 2006PECOS Enrolled
103 S BEDFORD RD STE 208, CAREMOUNT MEDICAL, PC, MOUNT KISCO, NY 10549(914) 241-1050(914) 242-1420 Get Directions Write a Review

NPPES record last updated: September 12, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 12, 2016, Jun 30, 2016 (2 updates tracked since 2016).

About Lois Tuerk-mendelsohn M.d. NPPES

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

LOIS TUERK-MENDELSOHN M.D. (NPI 1366466146) is an individual allergy & immunology provider in Mount Kisco, New York, licensed in New York (172790) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366466146
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameLOIS TUERK-MENDELSOHNCredential: M.D.
Location Address103 S BEDFORD RD STE 208, CAREMOUNT MEDICAL, PCMount Kisco, NY 10549-3453
Mailing Address110 S Bedford Rd, Caremount Medical, PcMount Kisco, NY 10549-3446 · (914) 241-1050 · Fax (914) 242-1420
Phone(914) 241-1050
Fax(914) 242-1420
Sole ProprietorNo
Enumeration DateJuly 26, 2006
Last NPPES UpdateSeptember 12, 20162 updates tracked since enumeration
✔ NPI 1366466146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in NY · 172790
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
103 S BEDFORD RD STE 208, Mount Kisco, NY 10549
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Other Identifiers 3

Medicare PINA400044132NY
Medicare UPINE87483NY
Medicaid01235730NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lois Tuerk-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 Lois Tuerk-mendelsohn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Optum Medical Care, P.C.
0.1 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Injection, immune globulin, intravenous, lyophilized (e.g., powder), not otherwise specified, 500 mg J1566
Treatment-Injections and Infusions (nononcologic) · category RI008N
1 supplier17 claims850 services$56.65 avg. paid by Medicare
Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration Q2052
Treatment-Chemotherapy · category RH012N
1 supplier17 claims17 services$309.74 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Lois Tuerk-mendelsohn's NPI number?

The NPI number for Lois Tuerk-mendelsohn is 1366466146. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Lois Tuerk-mendelsohn located?

Lois Tuerk-mendelsohn practices at 103 S Bedford Rd Ste 208 Caremount Medical, PC, Mount Kisco, NY 10549. The listed phone number is (914) 241-1050.

What is Lois Tuerk-mendelsohn's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Lois Tuerk-mendelsohn enrolled in Medicare?

Yes. Lois Tuerk-mendelsohn is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lois Tuerk-mendelsohn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lois Tuerk-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 Lois Tuerk-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 Lois Tuerk-mendelsohn was last updated on September 12, 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.