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GENESIS INTERNAL MEDICINE PLLC
NPI 1639305089
Internal Medicine in Geneseo, NY

Active since May 29, 2009
50 E SOUTH ST., SUITE 600, GENESEO, NY 14454(585) 243-5109(585) 243-5124 Get Directions Write a Review

NPPES record last updated: September 3, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Genesis Internal Medicine Pllc NPPES

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

GENESIS INTERNAL MEDICINE PLLC (NPI 1639305089) is a healthcare organization registered as an internal medicine in Geneseo, New York and active in the NPI registry since May 2009. The organization lists Nancy Quibeil, Practice Mgr, as its authorized official.

NPPES Registry Identity

NPI1639305089
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGENESIS INTERNAL MEDICINE PLLC
Location Address50 E SOUTH ST., SUITE 600Geneseo, NY 14454
Mailing Address50 E South St., Suite 600Geneseo, NY 14454 · (585) 243-5109 · Fax (585) 243-5124
Phone(585) 243-5109
Fax(585) 243-5124
Organization SubpartNo
Authorized OfficialNancy QuibeilPractice Mgr · (585) 335-2210
Enumeration DateMay 29, 2009
Last NPPES UpdateSeptember 3, 2009
✔ NPI 1639305089 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 · 234105
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.
50 E SOUTH ST., Geneseo, NY 14454
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Other Identifiers 1

Medicare UPINRA4923NY

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)

Genesis Internal Medicine Pllc 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 Genesis Internal Medicine PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ahsen Sheikh, M.D.
Internal Medicine
NPI 1659328979
50 E SOUTH ST
Geneseo, NY 14454
(585) 243-5109
✔ PECOS✔ Accepts Medicare0.5 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 Genesis Internal Medicine PLLC's NPI number?

The NPI number for Genesis Internal Medicine PLLC is 1639305089. It was assigned to this organization in the NPPES registry on May 29, 2009.

Where is Genesis Internal Medicine PLLC located?

Genesis Internal Medicine PLLC is located at 50 E South St. Suite 600, Geneseo, NY 14454. The listed phone number is (585) 243-5109.

What is Genesis Internal Medicine PLLC's specialty?

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

Is Genesis Internal Medicine PLLC enrolled in Medicare?

Yes. Genesis Internal Medicine PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Genesis Internal Medicine PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Genesis Internal Medicine PLLC. 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 Genesis Internal Medicine PLLC was last updated on September 3, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.