MICHAEL E. GRIBETZ, MD PC
NPI 1427082932
Specialist in New York, NY
About Michael E. Gribetz, Md Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL E. GRIBETZ, MD PC (NPI 1427082932) is a healthcare organization registered as a specialist in New York, New York and active in the NPI registry since July 2006. The organization holds a CLIA Certificate of Compliance certificate valid through March 17, 2028 and lists Michael E Gribetz, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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)
Michael E. Gribetz, Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 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
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Michael E. Gribetz, MD PC, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
New York, NY 10016
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Compliance 33D0132892
Michael Gribetz MD PC · New York, NYFrequently 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 Michael E. Gribetz, MD PC's NPI number?
The NPI number for Michael E. Gribetz, MD PC is 1427082932. It was assigned to this organization in the NPPES registry on July 10, 2006.
Where is Michael E. Gribetz, MD PC located?
Michael E. Gribetz, MD PC is located at 1155 Park Ave, New York, NY 10128. The listed phone number is (212) 831-1300.
What is Michael E. Gribetz, MD PC's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Michael E. Gribetz, MD PC enrolled in Medicare?
Yes. Michael E. Gribetz, MD PC is registered in the Medicare PECOS enrollment system.
When is Michael E. Gribetz, MD PC'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 March 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 Michael E. Gribetz, MD PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Pathology, reassign their Medicare billing to Michael E. Gribetz, MD PC. 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. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Michael E. Gribetz, MD PC hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 33D0132892) is associated with this NPI, valid through March 17, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Michael E. Gribetz, MD PC was last updated on August 5, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Michael E. Gribetz, Md Pc · NPI 1427082932
Specialist organization in New York, New York. Organization record, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1427082932 (Entity type: Organization)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Michael Gribetz, PRESIDENT
## Practice location
- **Address:** 1155 PARK AVE, New York, NY 10128-1209
- **Phone:** (212) 831-1300 · **Fax:** (212) 860-7884
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, New York, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 3 clinicians (Pathology) reassign Medicare billing to this organization (form CMS-855R); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 5, 2010
- **Other identifiers:** Medicare UPIN B13329 (NY)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1427082932) · Data from the CMS NPPES public registry.