DR. ASHISH C MASSEY MD, PH.D.
NPI 1255674321
Pediatrics - Pediatric Hematology-Oncology in New York, NY

Active since March 27, 2013PECOS Enrolled
84.47/100
CMS Quality Rating
1275 YORK AVE # HOWARD14, NEW YORK, NY 10065(212) 639-5966 Get Directions Write a Review

NPPES record last updated: June 9, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 9, 2024, Nov 8, 2021, Sep 7, 2021 (3 updates tracked since 2021).

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

NPI1255674321
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameDR. ASHISH C MASSEYCredential: MD, PH.D.
Location Address1275 YORK AVE # HOWARD14New York, NY 10065-6007
Mailing Address1275 York Ave, Howard 14 Floor; Dept Of PediatricsNew York, NY 10065 · (631) 834-0454
Sole ProprietorNo
Enumeration DateMarch 27, 2013
Last NPPES UpdateJune 9, 20243 updates tracked since enumeration
NPPES CertifiedJune 9, 2024
✔ NPI 1255674321 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in NY · 282245
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
1275 YORK AVE # HOWARD14, New York, NY 10065

Secondary Practice Location 1

Location 1120 Mineola Blvd Ste 460Mineola, NY 11501-4067 · Phone (516) 663-9400

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).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare 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.

Pediatrics
1275 YORK AVE
New York, NY 10021
  • Reassigned Medicare billing, New York enrollment
  • 220 clinicians in this Medicare group
Cardiovascular Disease
3301 QUANTUM BLVD
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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.33
Promoting Interoperability100
Improvement Activities40
Cost54.91

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pediatrics (Pediatric Hematology-Oncology)
1275 YORK AVE # HOWARD14
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.