DR. MARGARET ANNE EAGAN MD
NPI 1386639656
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Francisco, CA
About Dr. Margaret Anne Eagan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET ANNE EAGAN MD (NPI 1386639656) is an individual endocrinology, diabetes & metabolism provider in San Francisco, California, licensed in Colorado (33365) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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. Margaret Anne Eagan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Margaret Eagan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94111
- Reassigned Medicare billing, Alabama, Colorado, Florida, North Carolina and South Carolina enrollments
- Medicare enrollment name: Virta Medical PC
- 10 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 94111 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Eagan's NPI number?
The NPI number for Margaret Eagan is 1386639656. It was assigned to this individual provider in the NPPES registry on September 13, 2005.
Where is Margaret Eagan located?
Margaret Eagan practices at 201 California St Ste 1300, San Francisco, CA 94111. The listed phone number is (844) 847-8216.
What is Margaret Eagan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Margaret Eagan enrolled in Medicare?
Yes. Margaret Eagan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Margaret Eagan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Eagan reassigns Medicare benefits to Virta Medical P.C. (San Francisco, CA). 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 Eagan'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 Margaret Eagan was last updated on March 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 Anne Eagan, MD · NPI 1386639656
Endocrinology, Diabetes & Metabolism physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since September 13, 2005.
## Identity
- **NPI:** 1386639656 (Entity type: Individual)
- **Enumerated:** September 13, 2005
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 33365 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 201 CALIFORNIA ST STE 1300, San Francisco, CA 94111-5015
- **Phone:** (844) 847-8216
## 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:** Virta Medical P.C. (NPI 1093225138, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 23, 2023
- **Other identifiers:** Medicaid 67705821 (CO)
---
Source: [NPI Profile](https://npiprofile.com/npi/1386639656) · Data from the CMS NPPES public registry.