Sonja Demara Cahoon, CNM

Primary specialty

Registered NurseTaxonomy code 163W00000X

License

537712 Issued in CA

Practice address

2101 Courage Dr
Fairfield, CA 94533-6717

Phone

(707) 428-1131

Fax

(707) 428-1131

NPI assigned

Mar 10, 2011

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 1

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

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.

• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Santa Clara, CA
  • NPI 1073606299
  Medicare reassignment NPD
• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Stockton, CA
  • NPI 1548343510
  NPD
• Permanente Medical Group, Inc

  • Clinical Medical Laboratory
  • San Jose, CA
  • NPI 1497971584
  NPD

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

{
    "created_epoch": "1299715200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754352000000",
    "number": "1902104250",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1691 THE ALAMEDA",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951262203",
            "telephone_number": "408-795-3600",
            "fax_number": "408-287-0406"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2101 COURAGE DR",
            "city": "FAIRFIELD",
            "state": "CA",
            "postal_code": "945336717",
            "telephone_number": "707-428-1131",
            "fax_number": "707-428-1131"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "27287 Patrick Ave",
            "address_purpose": "LOCATION",
            "city": "Hayward",
            "state": "CA",
            "postal_code": "945444405",
            "country_code": "US",
            "telephone_number": "408-795-3600",
            "fax_number": "408-287-0405",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CAHOON",
        "first_name": "SONJA",
        "middle_name": "DEMARA",
        "credential": "CNM",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-03-10",
        "last_updated": "2025-08-05",
        "certification_date": "2025-08-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367A00000X",
            "taxonomy_group": "",
            "desc": "Advanced Practice Midwife",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "CA",
            "license": "537712",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq",
            "affiliation": "Y",
            "endpointDescription": "Carequality",
            "affiliationName": "The Permanente Medical Group",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "401 Bicentennial Way",
            "city": "Santa Rosa",
            "state": "CA",
            "country_code": "US",
            "postal_code": "954032149",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Evelyn Caburnay
• Laura Monica Cacho Mendoza
• Clarisse Elaine Cadang, M.D.
• Rochelee Cadatal, RN
• Aubrey Marie Lopez Cadiz
• Serena Nicole Cain
• Lori Cairns, RASI
• Jaimie Calabiao
• Luisa Calacsan
• Madison Bryce Calder, MD

• Registered Nurse in Fairfield, CA
• Providers in Fairfield, CA by specialty
• Registered Nurse in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.