Individual provider Active NPI

Margaret Sidney Hutchison, CNM

  • Obstetrics & Gynecology Nurse Practitioner
  • San Francisco, CA
National Provider Identifier
1841220324
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology Nurse PractitionerTaxonomy code 363LX0001X
License
RN460322 Issued in CA
Practice address
1001 Potrero Avenue
RM 6D14
San Francisco, CA 94110-3518
Phone
(415) 206-5679
Fax
(415) 206-3112
NPI assigned
Jul 3, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Nurse Practitioner 363LX0001X RN460322 CA Primary
Advanced Practice Midwife 367A00000X NMW806 CA

Addresses

Primary practice location

1001 Potrero Avenue
RM 6D14
San Francisco, CA 94110-3518

Mailing address

PO Box 7464
San Francisco, CA 94120-7464
Phone (415) 206-3103

Other identifiers 1

IdentifierTypeStateIssuer
NMW008060MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050301000468 CA Practitioner - Certified Nurse Midwife (CNM) 3375596448 Reassigns benefits to 4 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Nurse Midwife

State licenses

LicenseStateTypeSpecialty
806CAMDDental Hygienist
RN460322CAMDObstetrics & Gynecology Nurse Practitioner
NMW806CAMDAdvanced Practice Midwife

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of California CurrentSince Jan 15, 2019 Accepting new patients
University of California San Francisco CurrentSince Jan 15, 2019 Accepting new patients
University of California San Francisco Current Accepting new patients
UCSF Dept of Surgery CurrentSince Jan 15, 2019 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jan 15, 2018 Accepting new patients
University of California San Francisco CurrentSince Jan 15, 2019 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jan 15, 2018 Accepting new patients

Locations

400 Parnassus Ave
#300
San Francisco, CA 94143
Phone (415) 476-2163

1001 Potrero Ave
Rm 6D14
San Francisco, CA 94110
Phone (415) 206-5679

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

400 Parnassus Ave
San Francisco, CA 94143
Phone (415) 353-2000

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

Interoperability endpoints

  • Direct secure messaging: mhutchison580549@direct.ochin.org

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1151884800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1841220324",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7464",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941207464",
            "telephone_number": "415-206-3103",
            "fax_number": "415-206-3872"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVENUE",
            "address_2": "RM 6D14",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941103518",
            "telephone_number": "415-206-5679",
            "fax_number": "415-206-3112"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HUTCHISON",
        "first_name": "MARGARET",
        "middle_name": "SIDNEY",
        "credential": "CNM",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-03",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LX0001X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Obstetrics & Gynecology",
            "state": "CA",
            "license": "RN460322",
            "primary": true
        },
        {
            "code": "367A00000X",
            "taxonomy_group": "",
            "desc": "Advanced Practice Midwife",
            "state": "CA",
            "license": "NMW806",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "NMW008060",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.