GEISS MEDICAL NEW YORK PC
NPI 1487539979
Family Medicine in Buffalo, NY

Active since August 06, 2025
50 FOUNTAIN PLZ STE 1400, BUFFALO, NY 14202(855) 434-7763 Get Directions Write a Review

NPPES record last updated: August 6, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Geiss Medical New York Pc NPPES

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

GEISS MEDICAL NEW YORK PC (NPI 1487539979) is a healthcare organization registered as a family medicine in Buffalo, New York and active in the NPI registry since August 2025. The organization lists John Mark Geiss, Ceo, as its authorized official.

NPPES Registry Identity

NPI1487539979
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameGEISS MEDICAL NEW YORK PC
Location Address50 FOUNTAIN PLZ STE 1400Buffalo, NY 14202-2215
Mailing Address5 Hutton Centre Dr Ste 950Santa Ana, CA 92707-8744 · (855) 434-7763
Organization SubpartNo
Authorized OfficialJohn Mark GeissCeo · (714) 702-5145
Enumeration DateAugust 6, 2025
NPPES CertifiedAugust 6, 2025
✔ NPI 1487539979 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 FOUNTAIN PLZ STE 1400, Buffalo, NY 14202

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)

Geiss Medical New York Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Geiss Medical New York PC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (8)

General Surgery
NPI 1578592218
155 E 76TH ST # 1D
New York, NY 10021
(202) 573-9091
✔ PECOS293 mi
Nurse Practitioner
NPI 1326728668
1710 PATTERSON ST
Nashville, TN 37203
(615) 327-1085
✔ PECOS✔ Accepts Medicare628 mi
Internal Medicine
NPI 1932337136
2592 N SANTIAGO BLVD
Orange, CA 92867
(855) 434-7763
✔ PECOS✔ Accepts Medicare2,185 mi
Nurse Practitioner
NPI 1306340831
151 N KRAEMER BLVD STE 100
Placentia, CA 92870
(949) 209-1563
✔ PECOS✔ Accepts Medicare2,185 mi
Nurse Practitioner
NPI 1942353107
5 HUTTON CENTRE DR STE 950
Santa Ana, CA 92707
(855) 434-7763
✔ PECOS2,188 mi
Family Practice
NPI 1750940714
5 HUTTON CENTRE DR STE 950
Santa Ana, CA 92707
(855) 434-7763
✔ PECOS✔ Accepts Medicare2,188 mi
Nurse Practitioner
NPI 1528890472
5 HUTTON CENTRE DR STE 950
Santa Ana, CA 92707
(855) 434-7763
✔ PECOS✔ Accepts Medicare2,191 mi
Nurse Practitioner
NPI 1871185686
219 1/2 MARGUERITE AVE
Corona Del Mar, CA 92625
(949) 209-1563
✔ PECOS✔ Accepts Medicare2,194 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 Geiss Medical New York PC's NPI number?

The NPI number for Geiss Medical New York PC is 1487539979. It was assigned to this organization in the NPPES registry on August 6, 2025.

Where is Geiss Medical New York PC located?

Geiss Medical New York PC is located at 50 Fountain Plz Ste 1400, Buffalo, NY 14202. The listed phone number is (855) 434-7763.

What is Geiss Medical New York PC's specialty?

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

Is Geiss Medical New York PC enrolled in Medicare?

Yes. Geiss Medical New York PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Geiss Medical New York PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 4 Medicare specialties reassign their Medicare billing to Geiss Medical New York 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. The largest specialties are Nurse Practitioner (5), Family Practice (1) and General Surgery (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Geiss Medical New York PC was last updated on August 6, 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.