Individual provider Active NPI

Sarah Jessica Williamson, MD

  • Dermatopathology Physician
  • San Antonio, TX
National Provider Identifier
1306423231
Registry record updated Aug 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Dermatopathology PhysicianTaxonomy code 207ND0900X
License
W7491 Issued in TX
Practice address
7979 Wurzbach Rd
San Antonio, TX 78229-4427
Phone
(210) 450-1143
Fax
(210) 450-0407
NPI assigned
Mar 26, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 26, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dermatopathology Physician 207ND0900X W7491 TX Primary
Dermatology Physician 207N00000X W7491 TX

Addresses

Primary practice location

7979 Wurzbach Rd
San Antonio, TX 78229-4427

Mailing address

7979 Wurzbach Rd
San Antonio, TX 78229-4427
Phone (210) 450-1143

Other practice location 1

2500 Metrohealth Dr
Cleveland, OH 44109-1900
Phone (216) 778-3376

Other practice location 2

200 1st St SW
Rochester, MN 55905-1900
Phone (507) 284-2511

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address swilliamson2514844@ehrdirect.mayoclinicmsg.org

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250528001661 MN Practitioner - Dermatology 7214456771 Reassigns benefits to 1 organization

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic CurrentSince Jul 1, 2025 Accepting new patients
Mayo Clinic Current Accepting new patients
Mayo Clinic CurrentSince Jul 1, 2025 Accepting new patients
The Metrohealth System Current Accepting new patients

Locations

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

2500 Metrohealth Dr
Cleveland, OH 44109
Phone (216) 778-2348

Interoperability endpoints

  • Direct secure messaging: swilliamson222360@direct.metrohealth.org

Organizations & group practices 4

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": "1616716800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787702400000",
    "number": "1306423231",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7979 WURZBACH RD",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294427",
            "telephone_number": "210-450-1143",
            "fax_number": "210-450-0407"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7979 WURZBACH RD",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294427",
            "telephone_number": "210-450-1143",
            "fax_number": "210-450-0407"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2500 Metrohealth Dr",
            "address_purpose": "LOCATION",
            "city": "Cleveland",
            "state": "OH",
            "postal_code": "441091900",
            "country_code": "US",
            "telephone_number": "216-778-3376",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559051900",
            "country_code": "US",
            "telephone_number": "507-284-2511",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "SARAH",
        "middle_name": "JESSICA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-03-26",
        "last_updated": "2026-08-26",
        "certification_date": "2026-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ND0900X",
            "taxonomy_group": "",
            "desc": "Dermatology, Dermatopathology",
            "state": "TX",
            "license": "W7491",
            "primary": true
        },
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "TX",
            "license": "W7491",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "swilliamson2514844@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "200 1st St SW",
            "city": "Rochester",
            "state": "MN",
            "country_code": "US",
            "postal_code": "559051900",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

Verify at the official NPI Registry.