MARGARET SIDNEY HUTCHISON CNM
NPI 1841220324
Nurse Practitioner - Obstetrics & Gynecology in San Francisco, CA
About Margaret Sidney Hutchison Cnm NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET SIDNEY HUTCHISON CNM (NPI 1841220324) is an individual obstetrics & gynecology provider in San Francisco, California, licensed in California (RN460322) and active in the NPI registry since July 2006. She 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)
Margaret Sidney Hutchison Cnm is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Margaret Hutchison reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 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 94110 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.
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
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 Hutchison's NPI number?
The NPI number for Margaret Hutchison is 1841220324. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Margaret Hutchison located?
Margaret Hutchison practices at 1001 Potrero Avenue Rm 6d14, San Francisco, CA 94110. The listed phone number is (415) 206-5679.
What is Margaret Hutchison's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Obstetrics & Gynecology, with taxonomy code 363LX0001X.
Is Margaret Hutchison enrolled in Medicare?
Yes. Margaret Hutchison is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Margaret Hutchison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Hutchison reassigns Medicare benefits to 4 organizations: Regents Of The University Of California (San Francisco, CA), Ucsf Dept Of Surgery (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California San Francisco (San Francisco, CA). 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 Margaret Hutchison'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 Hutchison was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Margaret Sidney Hutchison, CNM · NPI 1841220324
Obstetrics & Gynecology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1841220324 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Nurse Practitioner - Obstetrics & Gynecology · taxonomy 363LX0001X
- **State license:** RN460322 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1001 POTRERO AVENUE, RM 6D14, San Francisco, CA 94110-3518
- **Phone:** (415) 206-5679 · **Fax:** (415) 206-3112
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1235322348, San Francisco, CA); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 11, 2025
- **Other identifiers:** Medicaid NMW008060 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1841220324) · Data from the CMS NPPES public registry.