JOHN J GRILLO PHYSICIANS, P.C.
NPI 1164789939
Anesthesiology in New York, NY
About John J Grillo Physicians, P.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN J GRILLO PHYSICIANS, P.C. (NPI 1164789939) is a healthcare organization registered as an anesthesiology in New York, New York and active in the NPI registry since April 2012. The organization lists John J Grillo, Anesthesiologist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John J Grillo Physicians, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to John J Grillo Physicians, P.C., which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 John J Grillo Physicians, P.C.'s NPI number?
The NPI number for John J Grillo Physicians, P.C. is 1164789939. It was assigned to this organization in the NPPES registry on April 18, 2012.
Where is John J Grillo Physicians, P.C. located?
John J Grillo Physicians, P.C. is located at 75 W End Ave Apt P37c, New York, NY 10023. The listed phone number is (917) 693-2619.
What is John J Grillo Physicians, P.C.'s specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John J Grillo Physicians, P.C. enrolled in Medicare?
Yes. John J Grillo Physicians, P.C. is registered in the Medicare PECOS enrollment system.
When is John J Grillo Physicians, P.C.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through John J Grillo Physicians, P.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Anesthesiology) reassigns their Medicare billing to John J Grillo Physicians, P.C.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for John J Grillo Physicians, P.C. was last updated on April 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# John J Grillo Physicians, P.c. · NPI 1164789939
Anesthesiology organization in New York, New York. Organization record, active in the CMS NPPES registry since April 18, 2012.
## Identity
- **NPI:** 1164789939 (Entity type: Organization)
- **Enumerated:** April 18, 2012
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **Organization subpart:** No
- **Authorized official:** John Grillo, ANESTHESIOLOGIST
## Practice location
- **Address:** 75 W END AVE APT P37C, New York, NY 10023-7881
- **Phone:** (917) 693-2619 · **Fax:** (718) 217-2896
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, New York, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Anesthesiology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 13, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1164789939) · Data from the CMS NPPES public registry.