Marc Donald Crosby, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

33740 Issued in CA

Practice address

25411 Cabot Rd Ste 108
Laguna Hills, CA 92653-5517

Phone

(949) 951-1066

Fax

(949) 951-6425

NPI assigned

Apr 17, 2008

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

Enrolled in CA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

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.

• Aliso Hills Dental Associates

  • General Practice Dentistry
  • Laguna Hills, CA
  • NPI 1043332919
  NPD (past)

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

{
    "created_epoch": "1208390400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757376000000",
    "number": "1104090398",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25411 CABOT RD STE 108",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926535517",
            "telephone_number": "949-951-1066",
            "fax_number": "949-951-6425"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "25411 CABOT RD STE 108",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926535517",
            "telephone_number": "949-951-1066",
            "fax_number": "949-951-6425"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CROSBY",
        "first_name": "MARC",
        "middle_name": "DONALD",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-04-17",
        "last_updated": "2025-09-09",
        "certification_date": "2025-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "33740",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• County of Orange
• Janice Lynne Covyeau, LMFT
• Nicole Danielle Cozean, PT, DPT, WCS
• Cozy Home Senior Care Inc.
• Crest Recovery LLC
• Nancie M Crosby, PT
• Amber Lynn Cruz
• Erika Cruz, NP
• Kristen Amanda Cruz
• Nancy Cruz

• General Practice Dentistry in Laguna Hills, CA
• Providers in Laguna Hills, CA by specialty
• General Practice Dentistry in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 2025; 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.