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FLEX MEDICAL PC
NPI 1255586517
Internal Medicine in New York, NY

Active since November 28, 2008
225 BROADWAY, STE 1420, NEW YORK, NY 10007(212) 571-5000 Get Directions Write a Review

NPPES record last updated: March 7, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Flex Medical Pc NPPES

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

FLEX MEDICAL PC (NPI 1255586517) is a healthcare organization registered as an internal medicine in New York, New York and active in the NPI registry since November 2008. The organization lists Sofya Kleyn, Owner, as its authorized official.

NPPES Registry Identity

NPI1255586517
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameFLEX MEDICAL PC
Location Address225 BROADWAY, STE 1420New York, NY 10007-3001
Mailing Address225 Broadway Ste 910New York, NY 10007-3008 · (212) 571-5000
Phone(212) 571-5000
Organization SubpartNo
Authorized OfficialSofya KleynOwner · (212) 571-5000
Enumeration DateNovember 28, 2008
Last NPPES UpdateMarch 7, 2025
NPPES CertifiedMarch 7, 2025
✔ NPI 1255586517 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 243074
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.
225 BROADWAY, New York, NY 10007
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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)

Flex Medical 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 Flex Medical PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sofya Kleyn
Internal Medicine
NPI 1972628865
225 BROADWAY SUITE 1420
New York, NY 10007
(212) 571-5000
✔ 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 Flex Medical PC's NPI number?

The NPI number for Flex Medical PC is 1255586517. It was assigned to this organization in the NPPES registry on November 28, 2008.

Where is Flex Medical PC located?

Flex Medical PC is located at 225 Broadway Ste 1420, New York, NY 10007. The listed phone number is (212) 571-5000.

What is Flex Medical PC's specialty?

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

Is Flex Medical PC enrolled in Medicare?

Yes. Flex Medical PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Flex Medical PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Flex Medical 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 Flex Medical PC was last updated on March 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.