MS. MARGARET MULLOY CORCORAN FNP
NPI 1578737482
Nurse Practitioner - Family in Buffalo, NY
About Ms. Margaret Mulloy Corcoran Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MARGARET MULLOY CORCORAN FNP (NPI 1578737482) is an individual family provider in Buffalo, New York, licensed in New York (335430) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Margaret Mulloy Corcoran Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Margaret Corcoran reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Buffalo, NY 14209
- Reassigned Medicare billing, New York enrollment
- 676 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14222 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BUFFALO, NY 14222
BUFFALO, NY 14222
BUFFALO, NY 14222
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 Margaret Corcoran's NPI number?
The NPI number for Margaret Corcoran is 1578737482. It was assigned to this individual provider in the NPPES registry on April 22, 2008. The provider is also known as Ms. Margaret R. Mulloy Fnp.
Where is Margaret Corcoran located?
Margaret Corcoran practices at 1300 Elmwood Ave, Buffalo, NY 14222. The listed phone number is (716) 878-6711.
What is Margaret Corcoran's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Margaret Corcoran enrolled in Medicare?
Yes. Margaret Corcoran is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Margaret Corcoran's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Corcoran reassigns Medicare benefits to Kaleida Health (Buffalo, 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 Margaret Corcoran'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 Margaret Corcoran was last updated on September 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ms. Margaret Mulloy Corcoran, FNP · NPI 1578737482
Family physician in Buffalo, New York. Individual provider, active in the CMS NPPES registry since April 22, 2008.
## Identity
- **NPI:** 1578737482 (Entity type: Individual)
- **Enumerated:** April 22, 2008
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 335430 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 ELMWOOD AVE, Buffalo, NY 14222-1004
- **Phone:** (716) 878-6711
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Kaleida Health (NPI 1831229780, Buffalo, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 9, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1578737482) · Data from the CMS NPPES public registry.