ANTHONY JOHN GRANDELIS MD
NPI 1265966550
Obstetrics & Gynecology in New York, NY
About Anthony John Grandelis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANTHONY JOHN GRANDELIS MD (NPI 1265966550) is an individual obstetrics & gynecology provider in New York, New York, licensed in New York (315323) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Anthony John Grandelis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Anthony Grandelis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Brooklyn, NY 11220
- Reassigned Medicare billing, New York enrollment
- 76 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 10034 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Anthony Grandelis's NPI number?
The NPI number for Anthony Grandelis is 1265966550. It was assigned to this individual provider in the NPPES registry on April 13, 2017.
Where is Anthony Grandelis located?
Anthony Grandelis practices at 5141 Broadway Rm 1rw-097, New York, NY 10034. The listed phone number is (212) 932-4200.
What is Anthony Grandelis's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Anthony Grandelis enrolled in Medicare?
Yes. Anthony Grandelis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Anthony Grandelis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Grandelis reassigns Medicare benefits to 2 organizations: Trustees Of Columbia University In The City Of New York (New York, NY) and Mmc Ob-Gyn Faculty Practice Plan (Brooklyn, 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 Anthony Grandelis'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 Anthony Grandelis was last updated on March 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Anthony John Grandelis, MD · NPI 1265966550
Obstetrics & Gynecology physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 13, 2017.
## Identity
- **NPI:** 1265966550 (Entity type: Individual)
- **Enumerated:** April 13, 2017
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 315323 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 5141 BROADWAY RM 1RW-097, New York, NY 10034-1159
- **Phone:** (212) 932-4200
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1508266347, New York, NY); Mmc Ob-Gyn Faculty Practice Plan (NPI 1306843388, Brooklyn, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 15, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1265966550) · Data from the CMS NPPES public registry.