Robert L. Telles, M.S. R.A.S.

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

Practice address

2523 El Portal Dr Ste 102
San Pablo, CA 94806-3305

Phone

(510) 374-3337

Fax

(510) 374-3328

NPI assigned

May 17, 2007

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1179360000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788048000000",
    "number": "1295942001",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "320 CALDECOTT LN UNIT 314",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946182429",
            "telephone_number": "510-374-3337",
            "fax_number": "510-374-3328"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2523 EL PORTAL DR STE 102",
            "city": "SAN PABLO",
            "state": "CA",
            "postal_code": "948063305",
            "telephone_number": "510-374-3337",
            "fax_number": "510-374-3328"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TELLES",
        "first_name": "ROBERT",
        "middle_name": "L.",
        "name_prefix": "Mr.",
        "credential": "M.S.  R.A.S.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-05-17",
        "last_updated": "2026-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jianna Tam, PHARM.D.
• Alayne Elizabeth Taylor
• Ashanti Taylor, MA, AMFT
• Cassandra Taylor
• Adrian George Tedeschi, MD
• Oravanh Thammasen I
• The Child Therapy Institute of Marin
• Caitlin Thomas, PT, DPT
• Donald George Thompson Jr., CATC
• Michael Wayne Thompson, CAS

• Addiction (Substance Use Disorder) Counselor in San Pablo, CA
• Providers in San Pablo, CA by specialty
• Addiction (Substance Use Disorder) Counselor in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 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.