GREGORY HEIFLER, MD, PA
NPI 1437357944
Family Medicine in Montclair, NJ
About Gregory Heifler, Md, Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY HEIFLER, MD, PA (NPI 1437357944) is a healthcare organization registered as a family medicine in Montclair, New Jersey and active in the NPI registry since July 2007. The organization lists Gregory Heifler, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gregory Heifler, Md, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Gregory Heifler, MD, PA, 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 Gregory Heifler, MD, PA's NPI number?
The NPI number for Gregory Heifler, MD, PA is 1437357944. It was assigned to this organization in the NPPES registry on July 5, 2007.
Where is Gregory Heifler, MD, PA located?
Gregory Heifler, MD, PA is located at 103 Park St Building B, Montclair, NJ 07042. The listed phone number is (973) 275-1860.
What is Gregory Heifler, MD, PA's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gregory Heifler, MD, PA enrolled in Medicare?
Yes. Gregory Heifler, MD, PA is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Gregory Heifler, MD, PA?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Gregory Heifler, MD, PA. 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 Gregory Heifler, MD, PA was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Gregory Heifler, Md, Pa · NPI 1437357944
Family Medicine organization in Montclair, New Jersey. Organization record, active in the CMS NPPES registry since July 5, 2007.
## Identity
- **NPI:** 1437357944 (Entity type: Organization)
- **Enumerated:** July 5, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Organization subpart:** No
- **Authorized official:** Gregory Heifler, OWNER
## Practice location
- **Address:** 103 PARK ST, BUILDING B, Montclair, NJ 07042-5913
- **Phone:** (973) 275-1860
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Family Practice) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 22, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1437357944) · Data from the CMS NPPES public registry.