DR. ZACHARY MICHAEL GRINSPAN MD
NPI 1033377338
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in New York, NY
About Dr. Zachary Michael Grinspan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZACHARY MICHAEL GRINSPAN MD (NPI 1033377338) is an individual neurology with special qualifications in child neurology provider in New York, New York, licensed in New York (245443) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses 2
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. Zachary Michael Grinspan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Zachary Grinspan 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
- 980 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 220 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 10021 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.
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 10021
NEW YORK, NY 10021
NEW YORK, NY 10021
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 Zachary Grinspan's NPI number?
The NPI number for Zachary Grinspan is 1033377338. It was assigned to this individual provider in the NPPES registry on May 23, 2008.
Where is Zachary Grinspan located?
Zachary Grinspan practices at 505 E 70th St Fl 3, New York, NY 10021. The listed phone number is (212) 746-3278.
What is Zachary Grinspan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.
Is Zachary Grinspan enrolled in Medicare?
Yes. Zachary Grinspan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Zachary Grinspan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Grinspan reassigns Medicare benefits to 2 organizations: Weill Medical College Of Cornell (New York, NY) and Memorial Pediatric 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 Zachary Grinspan'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 Zachary Grinspan was last updated on June 30, 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.
# Dr. Zachary Michael Grinspan, MD · NPI 1033377338
Neurology with Special Qualifications in Child Neurology physician in New York, New York. Individual provider, active in the CMS NPPES registry since May 23, 2008.
## Identity
- **NPI:** 1033377338 (Entity type: Individual)
- **Enumerated:** May 23, 2008
- **Primary specialty:** Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology · taxonomy 2084N0402X
- **State license:** 245443 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 E 70TH ST FL 3, New York, NY 10021-4872
- **Phone:** (212) 746-3278 · **Fax:** (212) 746-8137
## 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): Weill Medical College Of Cornell (NPI 1770892580, New York, NY); Memorial Pediatric Group (NPI 1750352381, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 30, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1033377338) · Data from the CMS NPPES public registry.