Mark A Ross

Primary specialty

Rehabilitation PractitionerTaxonomy code 225400000X

Practice address

5850 Thille St
Ventura, CA 93003-5413

Phone

(805) 844-0755

NPI assigned

Jul 5, 2017

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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.

• Dos Arboles Psychological Services

  • Psychologist
  • Ventura, CA
  • NPI 1538994728

  Case Manager/Care Coordinator

  NPD

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

{
    "created_epoch": "1499212800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769385600000",
    "number": "1013438647",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5850 THILLE ST STE 205",
            "city": "VENTURA",
            "state": "CA",
            "postal_code": "930039004"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5850 THILLE ST",
            "city": "VENTURA",
            "state": "CA",
            "postal_code": "930035413",
            "telephone_number": "805-844-0755"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROSS",
        "first_name": "MARK",
        "middle_name": "A",
        "name_prefix": "Mr.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-07-05",
        "last_updated": "2026-01-26",
        "certification_date": "2026-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "171M00000X",
            "taxonomy_group": "",
            "desc": "Case Manager/Care Coordinator",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "225400000X",
            "taxonomy_group": "",
            "desc": "Rehabilitation Practitioner",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "175T00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Peer Specialist",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephanie Rosier
• Lauren Dawn Rosko
• Ross Burge, DO, a Professional Corporation
• Jay Dee Ross, D.D.S.
• Kayla Marie Ross
• Michael Ross, O.D.
• Michael Rotas, M.D.
• Michael Roth, DC
• Steven Rothstein, PHD
• Bonnie Erika Rouda-Ruiz, LVN

• Rehabilitation Practitioner in Ventura, CA
• Providers in Ventura, CA by specialty
• Rehabilitation Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 26, 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.