ALISON GAIL MASSEY ANP
NPI 1003104787
Nurse Practitioner - Adult Health in New York, NY
About Alison Gail Massey Anp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON GAIL MASSEY ANP (NPI 1003104787) is an individual adult health provider in New York, New York, licensed in New York (305744) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alison Gail Massey Anp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alison 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 10065
- Reassigned Medicare billing, New York enrollment
- 315 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 514 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10065 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.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10065
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 Alison Massey's NPI number?
The NPI number for Alison Massey is 1003104787. It was assigned to this individual provider in the NPPES registry on July 15, 2011.
Where is Alison Massey located?
Alison Massey practices at 1275 York Ave, New York, NY 10065. The listed phone number is (212) 639-2000.
What is Alison Massey's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Alison Massey enrolled in Medicare?
Yes. Alison Massey is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alison Massey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Massey reassigns Medicare benefits to 2 organizations: Memorial Medical Consultation Group (New York, NY) and Memorial Solid Tumor Group (New York, 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 Alison 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 Alison Massey was last updated on July 10, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Alison Gail Massey, ANP · NPI 1003104787
Adult Health physician in New York, New York. Individual provider, active in the CMS NPPES registry since July 15, 2011.
## Identity
- **NPI:** 1003104787 (Entity type: Individual)
- **Enumerated:** July 15, 2011
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 305744 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1275 YORK AVE, New York, NY 10065-6007
- **Phone:** (212) 639-2000
## 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): Memorial Medical Consultation Group (NPI 1053382523, New York, NY); Memorial Solid Tumor Group (NPI 1699746172, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 10, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1003104787) · Data from the CMS NPPES public registry.