NPIMap

Organization Active NPI

United Medical Doctors

  • Sleep Medicine (Internal Medicine) Physician
  • San Diego, CA
National Provider Identifier
1639023187
Registry record updated Feb 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X
Legal business name
UNITED MEDICAL DOCTORS
Practice address
5643 Copley Dr Ste 240
San Diego, CA 92111-7903
Phone
(858) 348-9050
NPI assigned
Feb 23, 2026
Last updated
Feb 23, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
UNITED MEDICAL DOCTORSAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Feb 23, 2026

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

Authorized official

Name
John J Hong, MDNPI 1023088630
Title
Ceo
Phone
(951) 290-5472

Authorized official NPPES reports the official by name only. The link goes to the one practitioner with that name whose NPPES practice address or phone number is this organization’s.

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Sleep Specialist (PhD)Group: 193200000X MULTI-SPECIALTY GROUP 173F00000X
Sleep Medicine (Family Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207QS1201X
Sleep Medicine (Internal Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RS0012X Primary
Sleep Disorder Diagnostic Clinic/Center 261QS1200X

Addresses

Primary practice location

5643 Copley Dr Ste 240
San Diego, CA 92111-7903

Mailing address

28078 Baxter Rd Ste 530
Murrieta, CA 92563-1405
Phone (951) 290-5472

National Provider Directory

National Provider Directory
Tax ID family
Temecula Valley Digestive Disease Consultants a Medical Corporation5 organizations share this tax ID, including this one
Part of
Temecula Valley Digestive Disease Consultants a Medical Corporation

Other organizations with this tax ID 4

Organizations that report the same tax identification number in the National Provider Directory.

Locations

5643 Copley Dr
Ste 240
San Diego, CA 92111
Phone (858) 348-9050

Ownership & related parties

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1771804800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771804800000",
    "number": "1639023187",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28078 BAXTER RD STE 530",
            "city": "MURRIETA",
            "state": "CA",
            "postal_code": "925631405",
            "telephone_number": "951-290-5472"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5643 COPLEY DR STE 240",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921117903",
            "telephone_number": "858-348-9050"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "UNITED MEDICAL DOCTORS",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "UNITED MEDICAL DOCTORS",
        "enumeration_date": "2026-02-23",
        "last_updated": "2026-02-23",
        "certification_date": "2026-02-23",
        "status": "A",
        "authorized_official_last_name": "HONG",
        "authorized_official_first_name": "JOHN",
        "authorized_official_middle_name": "J",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "951-290-5472",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "173F00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Sleep Specialist, PhD",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207QS1201X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Family Medicine, Sleep Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "261QS1200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Sleep Disorder Diagnostic",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Diego, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 23, 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.