Individual provider Active NPI

Robert Charles Hirst, DDS,MS

  • Periodontics
  • Mission Viejo, CA
National Provider Identifier
1356488134
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
PeriodonticsTaxonomy code 1223P0300X
License
21996 Issued in CA
Practice address
27871 Medical Center Rd
#260
Mission Viejo, CA 92691-6404
Phone
(949) 364-2850
NPI assigned
Jan 31, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Periodontics 1223P0300X 21996 CA Primary

Addresses

Primary practice location

27871 Medical Center Rd
#260
Mission Viejo, CA 92691-6404

Mailing address

27871 Medical Center Rd
#260
Mission Viejo, CA 92691-6404
Phone (949) 364-2850

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
21996CAMDPeriodontist

Practice roles

OrganizationSpecialtyStatusNew patients
Reshad Dental Corp Periodontics PastSince Aug 3, 2025 Accepting new patients
Ajay Setya, DDS, Inc Past Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1170201600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1356488134",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "27871 MEDICAL CENTER RD",
            "address_2": "#260",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926916404",
            "telephone_number": "949-364-2850"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "27871 MEDICAL CENTER RD",
            "address_2": "#260",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926916404",
            "telephone_number": "949-364-2850"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HIRST",
        "first_name": "ROBERT",
        "middle_name": "CHARLES",
        "name_prefix": "Dr.",
        "credential": "DDS,MS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-31",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223P0300X",
            "taxonomy_group": "",
            "desc": "Dentist, Periodontics",
            "state": "CA",
            "license": "21996",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mission Viejo, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; 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.