NPIMap

Individual provider Active NPI

Sanna Elizabeth Herwald, MD

  • Vascular & Interventional Radiology Physician
  • Stanford, CA
National Provider Identifier
1710449111
Registry record updated Sep 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular & Interventional Radiology PhysicianTaxonomy code 2085R0204X
License
A181552 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Apr 3, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X A181552 CA
Vascular & Interventional Radiology Physician 2085R0204X 86003 WI
Vascular & Interventional Radiology Physician 2085R0204X A181552 CA Primary

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Other practice location 1

800 Highland Avenue
Madison, WI 53792-6919
Phone (608) 263-9729

Other practice location 2

1101 Van Ness Ave Ste 1120
San Francisco, CA 94109-6919
Phone (415) 600-6000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, WI2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20250620001786 CA Practitioner - Interventional RadiologyPractitioner - Diagnostic Radiology 9830601400 Reassigns benefits to 2 organizations
I20250812004778 WI Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 9830601400 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Interventional RadiologyAlso: Diagnostic Radiology
Education
Tufts University School of Medicine, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians
University of Wisconsin Medical Foundation IncGroup PAC ID 6608785464, 2,537 clinicians

Practice addresses (Care Compare)

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

600 Highland Ave
Madison, WI 53792-0001
Phone (608) 263-6400

Hospital & facility affiliations

  • University of Wi Hospitals & Clinics Authority Hospital, Madison, WI, CCN 520098
  • Stanford Health Care Hospital, Stanford, CA, CCN 050441
  • Unitypoint Health - Meriter Hospital, Madison, WI, CCN 520089

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A181552CAMDVascular & Interventional Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Richland Hospital CurrentSince Nov 1, 2025 Accepting new patients
University of Wisconsin System Non Payroll CurrentSince Aug 1, 2025 Accepting new patients
Stanford Health Care CurrentSince Jul 1, 2025 Accepting new patients
Fort Healthcare Inc CurrentSince Aug 1, 2025 Accepting new patients
Fort Healthcare Inc Current Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Jul 1, 2025 Accepting new patients
University of Wisconsin Medical Foundation, Inc CurrentSince Aug 1, 2025 Accepting new patients
University of Wisconsin Medical Foundation, Inc CurrentSince Aug 1, 2025 Accepting new patients
Stanford Health Care Diagnostic Radiology CurrentSince Jul 1, 2025 Accepting new patients
Richland Hospital CurrentSince Nov 1, 2025 Accepting new patients
Fort Healthcare, Inc. CurrentSince Aug 1, 2025 Accepting new patients
Stanford Health Care Diagnostic Radiology Current Accepting new patients
University of Wisconsin System Non Payroll CurrentSince Aug 1, 2025 Accepting new patients

Locations

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

1101 Van Ness Ave
Ste 1120
San Francisco, CA 94109
Phone (415) 600-3954

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

611 Sherman Ave E
Fort Atkinson, WI 53538
Phone (920) 563-6667

402 W Lake St
Friendship, WI 53934
Phone (608) 339-3331

1000 Mineral Point Ave
Janesville, WI 53548
Phone (608) 261-6868

1111 Highland Ave
Madison, WI 53705
Phone (608) 265-3596

6001 Research Park Blvd
Madison, WI 53719
Phone (608) 232-3171

600 Highland Ave
Madison, WI 53792
Phone (608) 263-0325

7974 Uw Health Ct
Middleton, WI 53562
Phone (608) 829-5270

333 E 2nd St
Richland Ctr, WI 53581
Phone (608) 647-6161

Interoperability endpoints

  • FHIR API: https://fhir-myrecord.cerner.com/r4/8F7ruIta-JA7ecm4ommy-Q50dF1FkFe4/

Organizations & group practices 13

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.

View all 13

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1554249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759104000000",
    "number": "1710449111",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "800 Highland Avenue",
            "address_purpose": "LOCATION",
            "city": "Madison",
            "state": "WI",
            "postal_code": "537926919",
            "country_code": "US",
            "telephone_number": "608-263-9729",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1101 Van Ness Ave Ste 1120",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941096919",
            "country_code": "US",
            "telephone_number": "415-600-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HERWALD",
        "first_name": "SANNA",
        "middle_name": "ELIZABETH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-03",
        "last_updated": "2025-09-29",
        "certification_date": "2025-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A181552",
            "primary": false
        },
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "WI",
            "license": "86003",
            "primary": false
        },
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "CA",
            "license": "A181552",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.