Jon Warren Loo, MD - Medicare Diagnostic Radiology in Laguna Hills, CA

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Jon Warren Loo, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Laguna Hills, California. He went to Medical College Of Wisconsin and graduated in 2008 and has 17 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Memorialcare Medical Foundation and his current practice location is 24451 Health Center Dr, Laguna Hills, California. You can reach out to his office (for appointments etc.) via phone at (949) 452-3573.

Jon Warren Loo is licensed to practice in California (license number A123551) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1871755017.

Contact Information

Jon Warren Loo, MD
24451 Health Center Dr,
Laguna Hills, CA 92653-3689
(949) 452-3573
Not Available

Map and Direction




Physician's Profile

Full NameJon Warren Loo
GenderMale
SpecialityDiagnostic Radiology
Experience17 Years
Location24451 Health Center Dr, Laguna Hills, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Jon Warren Loo attended and graduated from Medical College Of Wisconsin in 2008
  NPI Data:
  • NPI Number: 1871755017
  • Provider Enumeration Date: 06/30/2008
  • Last Update Date: 04/04/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0244408722
  • Enrollment ID: I20130617000354

Medical Identifiers

Medical identifiers for Jon Warren Loo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871755017NPI-NPPES
0A1235510MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0204XRadiology - Vascular & Interventional Radiology PG167394 (Oregon)Secondary
2085R0202XRadiology - Diagnostic Radiology A123551 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Memorialcare Orange Coast Medical CenterFountain valley, CAHospital
Memorialcare Saddleback Medical CenterLaguna hills, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Memorialcare Medical Foundation8729277314450

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Jon Warren Loo allows following entities to bill medicare on his behalf.
Entity NameSouth Coast Radiological Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902858384
PECOS PAC ID: 0749225753
Enrollment ID: O20050621000552
Entity NamePronet Imaging Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528099488
PECOS PAC ID: 5890722755
Enrollment ID: O20050721000831
Entity NameBeverly Radiology Medical Group Iii
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962457812
PECOS PAC ID: 3476466376
Enrollment ID: O20060221000914
Entity NameSan Fernando Valley Interventional Radiology And Imaging Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942350889
PECOS PAC ID: 3476651431
Enrollment ID: O20070614000478
Entity NameEmeryville Advanced Imaging Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376597930
PECOS PAC ID: 3375637051
Enrollment ID: O20070926000354
Entity NameMemorialcare Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205167350
PECOS PAC ID: 8729277314
Enrollment ID: O20110113000219

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Jon Warren Loo is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Jon Warren Loo, MD
28081 Marguerite Pkwy Unit 4433,
Mission Viejo, CA 92690-1916

Ph: (414) 704-8106		Jon Warren Loo, MD
24451 Health Center Dr,
Laguna Hills, CA 92653-3689

Ph: (949) 452-3573

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.