James Lloyd Hallenbeck, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

G54335 Issued in CA

Practice address

3801 Miranda Ave
Palo Alto, CA 94304-1207

Phone

(650) 849-0175

NPI assigned

Jun 16, 2006

Sex

Male

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1316982358",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1198 LYONS ST",
            "city": "REDWOOD CITY",
            "state": "CA",
            "postal_code": "940612263",
            "telephone_number": "650-366-4052"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3801 MIRANDA AVE",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041207",
            "telephone_number": "650-849-0175"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HALLENBECK",
        "first_name": "JAMES",
        "middle_name": "LLOYD",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-16",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G54335",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Gene Hurricane Hall, LCGC
• Nicholas Hall, MD
• Robert Glenn Hall, PH.D.
• Scott Hall, PH.D., BCBA-D
• Susan Hall, RD
• Catherine Hallet, RDN
• Courtney Hallum, MD
• Christina Lee Halstead, MD
• Mark Rollo Halverson, MD
• Ana Marija Halvorson

• Internal Medicine Physician in Palo Alto, CA
• Providers in Palo Alto, 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 Jul 13, 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.