DR. MARGARET ANN BAUMBUSCH MD, FACOG
NPI 1225336134
Obstetrics & Gynecology in New Haven, CT
About Dr. Margaret Ann Baumbusch Md, Facog NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET ANN BAUMBUSCH MD, FACOG (NPI 1225336134) is an individual obstetrics & gynecology provider in New Haven, Connecticut, licensed in Connecticut (51924) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses
Other Names 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. Margaret Ann Baumbusch Md, Facog 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 Reassignment
Medicare enrollment records show Margaret Baumbusch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06510 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Margaret Baumbusch's NPI number?
The NPI number for Margaret Baumbusch is 1225336134. It was assigned to this individual provider in the NPPES registry on March 2, 2011. The provider is also known as Dr. Margaret Ann Baumbusch MD, Facog.
Where is Margaret Baumbusch located?
Margaret Baumbusch practices at 40 Temple St. Suite 7A, New Haven, CT 06510. The listed phone number is (203) 789-2011.
What is Margaret Baumbusch's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Margaret Baumbusch enrolled in Medicare?
Yes. Margaret Baumbusch 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 organization bills Medicare for Margaret Baumbusch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Baumbusch reassigns Medicare benefits to Yale University (New Haven, CT). 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 Margaret Baumbusch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Baumbusch accept?
Health plans from Anthem Blue Cross and Blue Shield list Margaret Baumbusch 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 Margaret Baumbusch was last updated on May 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Margaret Ann Baumbusch, MD, FACOG · NPI 1225336134
Obstetrics & Gynecology physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since March 2, 2011.
## Identity
- **NPI:** 1225336134 (Entity type: Individual)
- **Enumerated:** March 2, 2011
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 51924 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 40 TEMPLE ST., SUITE 7A, New Haven, CT 06510
- **Phone:** (203) 789-2011 · **Fax:** (203) 865-1708
## 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:** Yale University (NPI 1124148887, New Haven, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Yale University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** May 21, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1225336134) · Data from the CMS NPPES public registry.