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ON CALL MEDICAL SERVICES PC
NPI 1821974320
Internal Medicine in Lawrence, NY

Active since August 12, 2025
48 FROST LN UNIT A, LAWRENCE, NY 11559(516) 862-1600 Get Directions Write a Review

NPPES record last updated: August 12, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About On Call Medical Services Pc NPPES

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

ON CALL MEDICAL SERVICES PC (NPI 1821974320) is a healthcare organization registered as an internal medicine in Lawrence, New York and active in the NPI registry since August 2025. The organization lists Eliezer Levitansky, Medical Director, as its authorized official.

NPPES Registry Identity

NPI1821974320
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameON CALL MEDICAL SERVICES PC
Location Address48 FROST LN UNIT ALawrence, NY 11559-1806
Mailing Address1219 E 68th StBrooklyn, NY 11234-5748 · (718) 300-4705
Phone(516) 862-1600
Organization SubpartNo
Authorized OfficialEliezer LevitanskyMedical Director · (718) 300-4705
Enumeration DateAugust 12, 2025
NPPES CertifiedAugust 12, 2025
✔ NPI 1821974320 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
48 FROST LN UNIT A, Lawrence, NY 11559
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

On Call Medical Services 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 On Call Medical Services PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Eliezer Levitansky, DO
Internal Medicine
NPI 1003379827
450 CLARKSON AVE
Brooklyn, NY 11203
(245) 331-8718
✔ PECOS✔ Accepts Medicare12 mi

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 On Call Medical Services PC's NPI number?

The NPI number for On Call Medical Services PC is 1821974320. It was assigned to this organization in the NPPES registry on August 12, 2025.

Where is On Call Medical Services PC located?

On Call Medical Services PC is located at 48 Frost Ln Unit A, Lawrence, NY 11559. The listed phone number is (516) 862-1600.

What is On Call Medical Services PC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is On Call Medical Services PC enrolled in Medicare?

Yes. On Call Medical Services PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through On Call Medical Services PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to On Call Medical Services 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 On Call Medical Services PC was last updated on August 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.