Joel O'Beso, PSY.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY34448 Issued in CA

Practice address

1900 Ofarrell St Ste 100
San Mateo, CA 94403-1387

Phone

(650) 780-0575

Fax

(650) 780-0587

NPI assigned

Dec 15, 2008

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

Other names 1

• Dr. Joel Obeso-Maldonado Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• American Health Medical Group

  • Specialist
  • San Mateo, CA
  • NPI 1528472636
  NPD (past)

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

{
    "created_epoch": "1229299200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769817600000",
    "number": "1154566438",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1900 OFARRELL ST STE 100",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944031387",
            "telephone_number": "650-780-0575",
            "fax_number": "650-780-0587"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1900 OFARRELL ST STE 100",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944031387",
            "telephone_number": "650-780-0575",
            "fax_number": "650-780-0587"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BESO",
        "first_name": "JOEL",
        "name_prefix": "Dr.",
        "credential": "PSY.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-12-15",
        "last_updated": "2026-01-31",
        "certification_date": "2026-01-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY34448",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOEL",
            "last_name": "OBESO-MALDONADO",
            "prefix": "DR.",
            "credential": "PSY.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• John Anthony Nungaray
• Nursing & Rehab at Home
• Nurturly Kids Physical Therapy, PC
• Linda Nwoga
• Angela Chinaza Nwokike
• Corinne O'Brien
• James C O'Connell, NP
• Sean O'Grady, D.C.
• Shelby Ann O'Hara
• Keirsty Marie O'Keeffe, M.A., MFTI

• Clinical Psychologist in San Mateo, CA
• Providers in San Mateo, CA by specialty
• Clinical Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.