Harold R. Smith, M.D., Inc

Primary specialty

Sleep Medicine (Psychiatry & Neurology) PhysicianTaxonomy code 2084S0012X

License

G43052 Issued in CA

Legal business name

HAROLD R. SMITH, M.D., INC

Practice address

4199 Campus Dr Ste 350
Irvine, CA 92612-4690

Phone

(949) 509-7726

Fax

(949) 509-7834

NPI assigned

Apr 19, 2007

Organization subpart

No

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

Authorized official

Name

Dr. Harold Raymond Smith, M.D.

Title

President

Phone

(949) 509-7726

Specialties & licenses 2

Addresses

Locations

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

{
    "created_epoch": "1176940800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1932326022",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4199 CAMPUS DR STE 350",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926124690",
            "telephone_number": "949-509-7726",
            "fax_number": "949-509-7834"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4199 CAMPUS DR STE 350",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926124690",
            "telephone_number": "949-509-7726",
            "fax_number": "949-509-7834"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "HAROLD R. SMITH, M.D., INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-04-19",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "SMITH",
        "authorized_official_first_name": "HAROLD",
        "authorized_official_middle_name": "RAYMOND",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "949-509-7726",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "CA",
            "license": "G43052",
            "primary": false
        },
        {
            "code": "2084S0012X",
            "taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
            "desc": "Psychiatry & Neurology, Sleep Medicine",
            "state": "CA",
            "license": "G43052",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Michelle Harnisch
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• Michael Haroun
• Brooke H Harper
• Kellie Ann Harper, M.S., BCBA
• Amanda Christine Harpst, SLP
• Douglas Stephen Harrington, M.D.

• Sleep Medicine (Psychiatry & Neurology) Physician in Irvine, CA
• Providers in Irvine, CA by specialty
• Sleep Medicine (Psychiatry & Neurology) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.