Ryan G Witherspoon, PH.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY32022 Issued in CA

Practice address

117 E Colorado Blvd Ste 425
Pasadena, CA 91105-3729

Phone

(626) 559-0939

NPI assigned

Jul 1, 2016

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Previously, effective Sep 14, 2020 through Sep 14, 2026

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Arts

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

{
    "created_epoch": "1467331200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782691200000",
    "number": "1851743850",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "117 E COLORADO BLVD STE 425",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911053729",
            "telephone_number": "626-559-0939"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "117 E COLORADO BLVD STE 425",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911053729",
            "telephone_number": "626-559-0939"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WITHERSPOON",
        "first_name": "RYAN",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-07-01",
        "last_updated": "2026-06-29",
        "certification_date": "2026-06-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY32022",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PSYCHOLOGIST LICENSE",
            "identifier": "PSY32022",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Wisdoms Birthing Services
• Natalie Wise-Aguilar
• Cori Wiseman, MSN
• Georgeanne Wisen, LMFT
• Rhonda Witherspoon
• Lauren T Withhart, M.S., BCBA
• Denise Susan Witt, BA
• Kyra Jessica Wojcik, PA
• John Paul Wolanin, PSY. D.
• Lauren Wolchok, M.D.

• Clinical Psychologist in Pasadena, CA
• Providers in Pasadena, CA by specialty
• Clinical Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.