Jon Warren Loo, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

A123551 Issued in CA

Practice address

24451 Health Center Dr
Laguna Hills, CA 92653-3689

Phone

(949) 452-3573

NPI assigned

Jun 30, 2008

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

Specialty

Diagnostic Radiology

Education

Medical College of Wisconsin, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Memorialcare Medical FoundationGroup PAC ID 8729277314, 555 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorialcare Orange Coast Medical Center Hospital, Fountain Valley, CA, CCN 050678
• Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: jon.loomd.p105@direct.nautilus.nextgenshare.com

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.

• Memorialcare Medical Foundation

  • Clinic/Center
  • Fountain Valley, CA
  • NPI 1205167350
  Medicare reassignment Care Compare group
• Pronet Imaging Medical Group, Inc.

  • Diagnostic Radiology Physician
  • Los Angeles, CA
  • NPI 1528099488
  Medicare reassignment NPD
• San Fernando Valley Interventional Radiology and Imaging Center

  • Vascular-Interventional Technology Radiologic Technologist
  • Encino, CA
  • NPI 1942350889
  Medicare reassignment NPD
• South Coast Radiological Medical Group Inc

  • Diagnostic Radiology Physician
  • Laguna Hills, CA
  • NPI 1902858384
  Medicare reassignment NPD
• Bristol Park Medical Group, Inc

  • Family Medicine Physician
  • Costa Mesa, CA
  • NPI 1043266760
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Orange Coast Memorial Medical Center

  • General Acute Care Hospital
  • Fountain Valley, CA
  • NPI 1497702575
  Care Compare affiliation
• Saddleback Memorial Medical Center

  • General Acute Care Hospital
  • Laguna Hills, CA
  • NPI 1275576381
  Care Compare affiliation

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

{
    "created_epoch": "1214784000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1743724800000",
    "number": "1871755017",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28081 MARGUERITE PKWY UNIT 4433",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926901916",
            "telephone_number": "414-704-8106"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24451 HEALTH CENTER DR",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926533689",
            "telephone_number": "949-452-3573"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOO",
        "first_name": "JON",
        "middle_name": "WARREN",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-06-30",
        "last_updated": "2025-04-04",
        "certification_date": "2025-04-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "OR",
            "license": "PG167394",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A123551",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0A1235510",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Long Beach Memorial Medical
• Long Beach Vamc
• Gregory J Long, CO
• Kristy Lauren Long, LMFT
• Kyle Long
• Ashley Lopez
• Berenice Lopez
• Charles Lopez
• Jennifer Lopez
• Martha Lopez

• Diagnostic Radiology Physician in Laguna Hills, CA
• Providers in Laguna Hills, CA by specialty
• Diagnostic Radiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 4, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.