DR. ANDREW D. CORWIN M.D.
NPI 1265401889
Obstetrics & Gynecology in New Brunswick, NJ
About Dr. Andrew D. Corwin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW D. CORWIN M.D. (NPI 1265401889) is an individual obstetrics & gynecology provider in New Brunswick, New Jersey, licensed in New York (179339) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Andrew D. Corwin M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Andrew Corwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Brunswick, NJ 08901
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Saint Peters University Hospital
- 325 clinicians in this Medicare group
Bronx, NY 10451
- Reassigned Medicare billing, New York enrollment
- 971 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 08901 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.
NEW BRUNSWICK, NJ 08901
NEW BRUNSWICK, NJ 08901
NEW BRUNSWICK, NJ 08901
NEW BRUNSWICK, NJ 08901
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 Andrew Corwin's NPI number?
The NPI number for Andrew Corwin is 1265401889. It was assigned to this individual provider in the NPPES registry on March 16, 2006.
Where is Andrew Corwin located?
Andrew Corwin practices at 254 Easton Ave, New Brunswick, NJ 08901. The listed phone number is (732) 745-8600.
What is Andrew Corwin's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Andrew Corwin enrolled in Medicare?
Yes. Andrew Corwin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Andrew Corwin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Corwin reassigns Medicare benefits to 2 organizations: Saint Peter's University Hospital (New Brunswick, NJ) and Downtown Bronx Medical Associates PC (Bronx, NY). 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 Andrew Corwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Corwin accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Andrew Corwin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Andrew Corwin was last updated on July 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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. Andrew D. Corwin, M.D. · NPI 1265401889
Obstetrics & Gynecology physician in New Brunswick, New Jersey. Individual provider, active in the CMS NPPES registry since March 16, 2006.
## Identity
- **NPI:** 1265401889 (Entity type: Individual)
- **Enumerated:** March 16, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 179339 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 254 EASTON AVE, New Brunswick, NJ 08901-1766
- **Phone:** (732) 745-8600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Saint Peter's University Hospital (NPI 1114924834, New Brunswick, NJ); Downtown Bronx Medical Associates PC (NPI 1689618407, Bronx, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** July 4, 2026
- **Other identifiers:** Medicaid 01648920 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1265401889) · Data from the CMS NPPES public registry.