SUSAN M SZIMONISZ MD
NPI 1285722462
Internal Medicine in Williamsville, NY
About Susan M Szimonisz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUSAN M SZIMONISZ MD (NPI 1285722462) is an individual internal medicine provider in Williamsville, New York, licensed in New York (217784-1) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Sisters Of Charity Hospital, and is a graduate of State University Of New York At Buffalo School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 8
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Susan M Szimonisz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Susan Szimonisz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 4 clinicians in this Medicare group
Tonawanda, NY 14217
- Reassigned Medicare billing, New York enrollment
- 10 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 7
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sisters Of Charity Hospital
Acute Care Hospitals · Buffalo, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14221 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Susan Szimonisz's NPI number?
The NPI number for Susan Szimonisz is 1285722462. It was assigned to this individual provider in the NPPES registry on October 11, 2006.
Where is Susan Szimonisz located?
Susan Szimonisz practices at 180 Park Club Ln Ste 200, Williamsville, NY 14221. The listed phone number is (716) 634-7350.
What is Susan Szimonisz's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Susan Szimonisz enrolled in Medicare?
Yes. Susan Szimonisz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Susan Szimonisz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Szimonisz reassigns Medicare benefits to 2 organizations: Buffalo Ent Specialists, LLP (Williamsville, NY) and Sheridan Drive Medical Group LLP (Tonawanda, 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 Susan Szimonisz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Susan Szimonisz affiliated with any hospitals?
According to CMS data, Susan Szimonisz is affiliated with Sisters Of Charity Hospital.
When was this NPI record last updated?
The NPPES record for Susan Szimonisz was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days 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.
# Susan M Szimonisz, MD · NPI 1285722462
Internal Medicine physician in Williamsville, New York. Individual provider, active in the CMS NPPES registry since October 11, 2006.
## Identity
- **NPI:** 1285722462 (Entity type: Individual)
- **Enumerated:** October 11, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 217784-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 180 PARK CLUB LN STE 200, Williamsville, NY 14221-5258
- **Phone:** (716) 634-7350
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Buffalo Ent Specialists, LLP (NPI 1366528077, Williamsville, NY); Sheridan Drive Medical Group LLP (NPI 1679684625, Tonawanda, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Buffalo School Of Medicine, class of 2000
## Record status
- **NPPES last updated:** September 1, 2026
- **Other identifiers:** Other 2593959 (NY); Other 040426035682 (NY); Other 82659 (NY); and 5 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1285722462) · Data from the CMS NPPES public registry.