DR. MARC AUERBACH MD
NPI 1679623839
Pediatrics - Pediatric Emergency Medicine in New Haven, CT
About Dr. Marc Auerbach Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARC AUERBACH MD (NPI 1679623839) is an individual pediatric emergency medicine provider in New Haven, Connecticut, licensed in Connecticut (047588) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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. Marc Auerbach Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Marc Auerbach reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
Milford, CT 06460
- Reassigned Medicare billing, Connecticut enrollment
- 219 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- 268 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.
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 HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
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 Marc Auerbach's NPI number?
The NPI number for Marc Auerbach is 1679623839. It was assigned to this individual provider in the NPPES registry on January 11, 2007.
Where is Marc Auerbach located?
Marc Auerbach practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-7970.
What is Marc Auerbach's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.
Is Marc Auerbach enrolled in Medicare?
Yes. Marc Auerbach is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marc Auerbach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Auerbach reassigns Medicare benefits to 3 organizations: Yale University (New Haven, CT), Bridgeport Hospital (Milford, CT) and Greenwich Hospital (Greenwich, CT). 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 Marc Auerbach'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 Marc Auerbach was last updated on June 22, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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. Marc Auerbach, MD · NPI 1679623839
Pediatric Emergency Medicine physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since January 11, 2007.
## Identity
- **NPI:** 1679623839 (Entity type: Individual)
- **Enumerated:** January 11, 2007
- **Primary specialty:** Pediatrics - Pediatric Emergency Medicine · taxonomy 2080P0204X
- **State license:** 047588 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 20 YORK ST, New Haven, CT 06510-3220
- **Phone:** (203) 688-7970
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Yale University (NPI 1124148887, New Haven, CT); Bridgeport Hospital (NPI 1619553021, Milford, CT); Greenwich Hospital (NPI 1609846088, Greenwich, CT) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 22, 2009
- **Other identifiers:** Medicaid 02825074 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1679623839) · Data from the CMS NPPES public registry.