Hailey Brooke Sommerfeld

Primary specialty

Advanced Practice MidwifeTaxonomy code 367A00000X

License

236568 Issued in CA

Practice address

5176 Hill Rd E
Lakeport, CA 95453-6300

Phone

(707) 262-5000

NPI assigned

May 15, 2023

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

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

Specialty

Certified Nurse Midwife (CNM)

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sutter Bay HospitalsGroup PAC ID 3476506528, 45 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Nurse Midwife

State licenses

Practice roles

Locations

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.

• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Santa Rosa, CA
  • NPI 1740413798
  Medicare reassignment Care Compare group NPD
• Sutter Bay Hospitals

  • Rehabilitation Hospital Unit
  • Oakland, CA
  • NPI 1194171371
  NPD

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

{
    "created_epoch": "1684108800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775174400000",
    "number": "1104517804",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3466 GREENWOOD DR",
            "city": "KELSEYVILLE",
            "state": "CA",
            "postal_code": "954519098",
            "telephone_number": "303-514-5758"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5176 HILL RD E",
            "city": "LAKEPORT",
            "state": "CA",
            "postal_code": "954536300",
            "telephone_number": "707-262-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SOMMERFELD",
        "first_name": "HAILEY",
        "middle_name": "BROOKE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-05-15",
        "last_updated": "2026-04-03",
        "certification_date": "2026-04-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "CA",
            "license": "95429691",
            "primary": false
        },
        {
            "code": "363LX0001X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Obstetrics & Gynecology",
            "state": "CA",
            "license": "236568",
            "primary": false
        },
        {
            "code": "367A00000X",
            "taxonomy_group": "",
            "desc": "Advanced Practice Midwife",
            "state": "CA",
            "license": "236568",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Erik Kristopher Smith, PA-C
• Jennifer Stolworthy Smith
• Amanda L Smithers, PA-C
• Jacquline Gail Smythe, MFC 43231
• Nardia Sokol, DPM
• Beverly A Southerland, P.A.
• Judy Wolfe Spillane, PH.D.
• Jennifer Marie Stabiner
• Peter George Stanley, MD
• Valerie Ann Stark

• Advanced Practice Midwife in Lakeport, CA
• Providers in Lakeport, CA by specialty
• Advanced Practice Midwife in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.