Jonathan Keyes, MD

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

A195221 Issued in CA

Practice address

233 E Caldwell Ave
Visalia, CA 93277-7605

Phone

(559) 228-6600

Fax

(559) 226-3709

NPI assigned

Mar 22, 2021

Sex

Male

Sole proprietor

Yes

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

Specialty

Nephrology

Education

University of Florida College of Medicine, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1616371200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787097600000",
    "number": "1578149381",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "568 E HERNDON AVE STE 201",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937202989",
            "telephone_number": "559-228-6600",
            "fax_number": "559-226-3709"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "233 E CALDWELL AVE",
            "city": "VISALIA",
            "state": "CA",
            "postal_code": "932777605",
            "telephone_number": "559-228-6600",
            "fax_number": "559-226-3709"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KEYES",
        "first_name": "JONATHAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-03-22",
        "last_updated": "2026-08-19",
        "certification_date": "2026-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "A195221",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Nephrology Physician in Visalia, CA
• Providers in Visalia, CA by specialty
• Nephrology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 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.