DR. STEPHEN ZINNER MD
NPI 1629043245
Internal Medicine - Infectious Disease in Cambridge, MA
About Dr. Stephen Zinner Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN ZINNER MD (NPI 1629043245) is an individual infectious disease provider in Cambridge, Massachusetts, licensed in Massachusetts (30001) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Stephen Zinner Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stephen Zinner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cambridge, MA 02138
- Reassigned Medicare billing, Massachusetts enrollment
- 423 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 02138 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
CAMBRIDGE, MA 02138
CAMBRIDGE, MA 02138
CAMBRIDGE, MA 02138
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 Stephen Zinner's NPI number?
The NPI number for Stephen Zinner is 1629043245. It was assigned to this individual provider in the NPPES registry on February 17, 2006.
Where is Stephen Zinner located?
Stephen Zinner practices at 330 Mount Auburn St, Cambridge, MA 02138. The listed phone number is (617) 499-5026.
What is Stephen Zinner's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Stephen Zinner enrolled in Medicare?
Yes. Stephen Zinner is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stephen Zinner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Zinner reassigns Medicare benefits to Mount Auburn Professional Services Inc (Cambridge, MA). The 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 Stephen Zinner'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 Stephen Zinner was last updated on March 1, 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.