Clayson Longview Health

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

CLAYSON LONGVIEW HEALTH

Practice address

1575 7TH Ave
San Francisco, CA 94122-3704

Phone

(702) 453-3799

Fax

(702) 453-5741

NPI assigned

Oct 21, 2025

Last updated

Mar 5, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Darby Clayson, MDNPI 1619968021

Title

President

Phone

(702) 218-2690

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Darby Annette Clayson, MD

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1619968021
  Medicare reassignment NPD Authorized official
• Sherene D Louie, NP

  • Family Nurse Practitioner
  • Santa Clara, CA
  • NPI 1508433012
  Medicare reassignment
• Candace Lynne Blauser, NP

  • Nurse Practitioner
  • Berkeley, CA
  • NPI 1104550425
  NPD

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

{
    "created_epoch": "1761004800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1772668800000",
    "number": "1275400681",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 31085",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941310085",
            "telephone_number": "702-218-2690"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1575 7TH AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941223704",
            "telephone_number": "702-453-3799",
            "fax_number": "702-453-5741"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CLAYSON LONGVIEW HEALTH",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-10-21",
        "last_updated": "2026-03-05",
        "certification_date": "2026-03-05",
        "status": "A",
        "authorized_official_last_name": "CLAYSON",
        "authorized_official_first_name": "DARBY",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "702-218-2690",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rickey Edward Clay, LVN
• Tia Clay, MD
• Mark E Claycomb, LCSW
• Alyse Michele Clayman, ASW
• Katherine Claypoole McKenzie, M.S.
• Darby Annette Clayson, MD
• Lauren Clayton
• Cleanslate Health Inc
• Clear Mind Psychology LTD
• Clearcast

• Internal Medicine Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.