Dennis L. Olson, O.D.

Primary specialty

Vision Therapy OptometristTaxonomy code 152WV0400X

License

OPT 05920T Issued in CA

Practice address

5710 Cahalan Ave
BLDG 2
San Jose, CA 95123-3010

Phone

(408) 229-2020

Fax

(408) 227-5056

NPI assigned

Feb 15, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1139961600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1699749697",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5710 CAHALAN AVE",
            "address_2": "BLDG 2",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951233010",
            "telephone_number": "408-229-2020",
            "fax_number": "408-227-5056"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5710 CAHALAN AVE",
            "address_2": "BLDG 2",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951233010",
            "telephone_number": "408-229-2020",
            "fax_number": "408-227-5056"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OLSON",
        "first_name": "DENNIS",
        "middle_name": "L.",
        "name_prefix": "Dr.",
        "credential": "O.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-15",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CA",
            "license": "OPT 05920T",
            "primary": false
        },
        {
            "code": "152WV0400X",
            "taxonomy_group": "",
            "desc": "Optometrist, Vision Therapy",
            "state": "CA",
            "license": "OPT 05920T",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "SD0059200",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Clifford Charles Olsen, PH.D.
• Marcus Olsen, PA-C
• Tessa Olsen
• Olson Individual and Family Counseling Services Inc
• Andrew Kyler Olson, MFT
• Douglas Olson, CMT, CMTPT
• Elisa Kristine Olson, B.A.
• Jaron Olson, MS, ATC
• Kent Olson, LCSW
• Kinga P Olson, N.P.

• Vision Therapy Optometrist in San Jose, CA
• Providers in San Jose, CA by specialty
• Vision Therapy Optometrist 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.