DR. MARY ELIZABETH BONAFEDE M.D.
NPI 1376627661
Pediatrics - Pediatric Infectious Diseases in West Islip, NY
About Dr. Mary Elizabeth Bonafede M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY ELIZABETH BONAFEDE M.D. (NPI 1376627661) is an individual pediatric infectious diseases provider in West Islip, New York, licensed in New York (208119) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mary Elizabeth Bonafede M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mary Bonafede reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 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.
Other Providers at the Same Location NPPES 3
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 Mary Bonafede's NPI number?
The NPI number for Mary Bonafede is 1376627661. It was assigned to this individual provider in the NPPES registry on October 24, 2006.
Where is Mary Bonafede located?
Mary Bonafede practices at 239 Higbie Ln, West Islip, NY 11795. The listed phone number is (631) 376-3000.
What is Mary Bonafede's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.
Is Mary Bonafede enrolled in Medicare?
Yes. Mary Bonafede is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mary Bonafede's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Bonafede reassigns Medicare benefits to Optum Medical Care, P.C. (Mount Kisco, NY). The 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 Mary Bonafede's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mary Bonafede was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.