Justin D Harris, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A123173 Issued in CA

Practice address

11 Technology Dr
Irvine, CA 92618-2302

Phone

(949) 923-3200

NPI assigned

Jun 19, 2007

Last updated

Dec 16, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Beaver Medical Group P C

  dba Optum

  • Family Medicine Physician
  • Redlands, CA
  • NPI 1649503319

  Internal Medicine

  Medicare reassignment NPD
• Centers for Family Medicine GP

  dba Optumcare Medical Group

  • Family Medicine Physician
  • Los Alamitos, CA
  • NPI 1467598243

  Internal Medicine

  Medicare reassignment NPD
• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment NPD
• Pinnacle Medical Group, Inc

  dba Optum

  • Family Medicine Physician
  • Fontana, CA
  • NPI 1376876912

  Internal Medicine

  Medicare reassignment NPD
• Saddleback Medical Group Inc

  • Gastroenterology Physician
  • Laguna Hills, CA
  • NPI 1386605822
  Medicare reassignment NPD
• Beaver Medical Group P C

  • Physical Therapist
  • Redlands, CA
  • NPI 1427090281
  NPD
• Cassidy Medical Group Inc.

  • Multi-Specialty Clinic/Center
  • Vista, CA
  • NPI 1215003470
  NPD
• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Pinnacle Medical Group, Inc

  • Family Medicine Physician
  • Fontana, CA
  • NPI 1043255763

  Internal Medicine

  NPD
• Talbert Medical Group, P.C.

  dba Talbert Medical Group

  • Internal Medicine Physician
  • Fountain Valley, CA
  • NPI 1528069176
  NPD (past)
• Dvma, LLC

  • Internal Medicine Physician
  • Peoria, AZ
  • NPI 1194893800
  NPD (past)
• Memorial Medical Group Inc

  • Durable Medical Equipment & Medical Supplies
  • Phoenix, AZ
  • NPI 1255523643
  NPD (past)

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

{
    "created_epoch": "1182211200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765843200000",
    "number": "1063617934",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11 TECHNOLOGY DR",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926182302",
            "telephone_number": "949-923-3200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARRIS",
        "first_name": "JUSTIN",
        "middle_name": "D",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-06-19",
        "last_updated": "2025-12-16",
        "certification_date": "2025-12-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A123173",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amanda Christine Harpst, SLP
• Douglas Stephen Harrington, M.D.
• Garrett Harrington, BCBA
• Celeste Marie Harris, MS CCC-SLP
• Jerry Harris
• Kelsey Kyle Harris, M.S., CF-SLP
• Kristine Lois Harris
• Richard Harris
• Theresa Denise Harris
• Ashleigh Harrison

• Internal Medicine Physician in Irvine, CA
• Providers in Irvine, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 16, 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.