DR. ASHISH C MASSEY MD, PH.D.
NPI 1255674321
Pediatrics - Pediatric Hematology-Oncology in New York, NY
About Dr. Ashish C Massey Md, Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ASHISH C MASSEY MD, PH.D. (NPI 1255674321) is an individual pediatric hematology-oncology provider in New York, New York, licensed in New York (282245) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS and maintains a secondary practice location in Mineola.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ashish C Massey Md, Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Ashish Massey 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 10021
- Reassigned Medicare billing, New York enrollment
- 220 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 2,450 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.
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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10065
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 Ashish Massey's NPI number?
The NPI number for Ashish Massey is 1255674321. It was assigned to this individual provider in the NPPES registry on March 27, 2013.
Where is Ashish Massey located?
Ashish Massey practices at 1275 York Ave # Howard14, New York, NY 10065. The listed phone number is (212) 639-5966.
What is Ashish Massey's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Ashish Massey enrolled in Medicare?
Yes. Ashish Massey is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ashish Massey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ashish Massey reassigns Medicare benefits to 2 organizations: Memorial Pediatric Group (New York, NY) and New York University (Boynton Beach, FL). 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 Ashish Massey'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 Ashish Massey was last updated on June 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.