WILLIAM GOTSIS MD
NPI 1215921606
Internal Medicine - Interventional Cardiology in Middletown, NY
About William Gotsis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM GOTSIS MD (NPI 1215921606) is an individual interventional cardiology provider in Middletown, New York, licensed in New York (188038) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1990).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Gotsis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show William Gotsis reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middletown, NY 10941
- Reassigned Medicare billing, New York enrollment
- 434 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Bronx, NY 10467
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 346 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 29
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Montefiore Medical Center
Acute Care Hospitals · Bronx, NYGarnet Health Medical Center
Acute Care Hospitals · Middletown, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10941 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MIDDLETOWN, NY 10941
MIDDLETOWN, NY 10941
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 William Gotsis's NPI number?
The NPI number for William Gotsis is 1215921606. It was assigned to this individual provider in the NPPES registry on August 31, 2005.
Where is William Gotsis located?
William Gotsis practices at 155 Crystal Run Rd, Middletown, NY 10941. The listed phone number is (845) 703-6999.
What is William Gotsis's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is William Gotsis enrolled in Medicare?
Yes. William Gotsis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for William Gotsis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Gotsis reassigns Medicare benefits to 4 organizations: Crystal Run Healthcare Physicians LLP (Middletown, NY), Westchester Medical Center Advanced Physician Services PC (Valhalla, NY), Montefiore Medical Center (Bronx, NY) and Icahn School Of Medicine At Mount Sinai (New York, NY). Each 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 William Gotsis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Gotsis affiliated with any hospitals?
According to CMS data, William Gotsis is affiliated with Montefiore Medical Center and Garnet Health Medical Center.
When was this NPI record last updated?
The NPPES record for William Gotsis was last updated on September 9, 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.