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SUN VALLEY MEDICAL SERVICES, P.C.
NPI 1609809276
Family Medicine in Geneseo, NY

Active since July 08, 2006CLIA 33D1049007 · Waiver
50 E SOUTH ST STE 800, GENESEO, NY 14454(585) 243-3590(585) 335-9417 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Sun Valley Medical Services, P.c. NPPES

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

SUN VALLEY MEDICAL SERVICES, P.C. (NPI 1609809276) is a healthcare organization registered as a family medicine in Geneseo, New York and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through December 18, 2027 and lists Geoffrey Aaron Markowski, Owner/physician, as its authorized official.

NPPES Registry Identity

NPI1609809276
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameSUN VALLEY MEDICAL SERVICES, P.C.
Location Address50 E SOUTH ST STE 800Geneseo, NY 14454-1388
Mailing Address10399 Poags Hole RdDansville, NY 14437-9580 · (585) 243-3590 · Fax (585) 335-9417
Phone(585) 243-3590
Fax(585) 335-9417
Organization SubpartNo
Authorized OfficialGeoffrey Aaron MarkowskiOwner/physician · (585) 243-3590
Enumeration DateJuly 8, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1609809276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
50 E SOUTH ST STE 800, Geneseo, NY 14454
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Sun Valley Medical Services, P.c. 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 Sun Valley Medical Services, P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Geoffrey Markowski, MD, FAAFP
Family Practice
NPI 1326063686
50 E SOUTH ST STE 800
Geneseo, NY 14454
(585) 243-3590
✔ 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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D1049007

Sun Valley Medical Services PC · Geneseo, NY
Active · expires Dec 18, 2027
CLIA Number33D1049007
Laboratory TypePhysician Office
Certificate Effective DateDecember 19, 2025
Certificate Expiration DateDecember 18, 2027
Laboratory DirectorGeoffrey A. Markowski MD
Laboratory Phone(585) 243-3590
Laboratory LocationSun Valley Medical Services PC50 E South Street, Suite 800, Geneseo, NY 14454
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Sun Valley Medical Services, P.C.'s NPI number?

The NPI number for Sun Valley Medical Services, P.C. is 1609809276. It was assigned to this organization in the NPPES registry on July 8, 2006.

Where is Sun Valley Medical Services, P.C. located?

Sun Valley Medical Services, P.C. is located at 50 E South St Ste 800, Geneseo, NY 14454. The listed phone number is (585) 243-3590.

What is Sun Valley Medical Services, P.C.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Sun Valley Medical Services, P.C. enrolled in Medicare?

Yes. Sun Valley Medical Services, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sun Valley Medical Services, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Sun Valley Medical Services, P.C.. 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.

Does Sun Valley Medical Services, P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D1049007) is associated with this NPI, valid through December 18, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Sun Valley Medical Services, P.C. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.