Carolyn A. McClain, M.D.

Primary specialty

Public Health & General Preventive Medicine PhysicianTaxonomy code 2083P0901X

License

C180898 Issued in CA

Practice address

Maison Medical
150 Portola Rd
Portola Valley, CA 94028-0000

Phone

(650) 530-0015

NPI assigned

May 31, 2007

Last updated

Feb 16, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Interoperability endpoints

• Direct secure messaging: carolyn.mcclain.1@25843.direct.athenahealth.com
• Direct secure messaging: carolyn.mcclain@1384432730116.direct.elationemr.com

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

{
    "created_epoch": "1180569600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771200000000",
    "number": "1649472929",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "150 PORTOLA RD STE A",
            "city": "PORTOLA VALLEY",
            "state": "CA",
            "postal_code": "940287852",
            "telephone_number": "650-530-0015",
            "fax_number": "650-353-9266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "MAISON MEDICAL",
            "address_2": "150 PORTOLA RD",
            "city": "PORTOLA VALLEY",
            "state": "CA",
            "postal_code": "940280000",
            "telephone_number": "650-530-0015"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCCLAIN",
        "first_name": "CAROLYN",
        "middle_name": "A.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-05-31",
        "last_updated": "2026-02-16",
        "certification_date": "2026-02-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2083P0901X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Public Health & General Preventive Medicine",
            "state": "CA",
            "license": "C180898",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rebecca Long
• Joann Marie Loulan, M.A.
• Lawrence S. Masket, MD
• Jarrod W Maslin, PT, DPT, ATC
• Johanna Mayer, PHD
• William Meffert, MD
• Karen Marie Mittelstadt, LAC
• John Kurt Moore, D.C.
• Maxwell Moore, DC
• Emma C Morton-Bours, M.D.

• Public Health & General Preventive Medicine Physician in Portola Valley, CA
• Providers in Portola Valley, CA by specialty
• Public Health & General Preventive Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 16, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.