Dr John Thomas Chon Sr, DO - Medicare Emergency Medicine in Covina, CA

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Dr John Thomas Chon Sr, DO is a medicare enrolled "Emergency Medicine" physician in Covina, California. He went to At Still University Of Health Sciences, College Of Osteo Med, Kirksville and graduated in 2002 and has 22 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Gem Medical Group Corporation and his current practice location is 210 W San Bernardino Rd, Covina, California. You can reach out to his office (for appointments etc.) via phone at (626) 375-1935.

Dr John Thomas Chon Sr is licensed to practice in California (license number 20A9192) 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 1184691644.

Contact Information

Dr John Thomas Chon Sr, DO
210 W San Bernardino Rd,
Covina, CA 91723-1515
(626) 375-1935
Not Available

Map and Direction




Physician's Profile

Full NameDr John Thomas Chon Sr
GenderMale
SpecialityEmergency Medicine
Experience22 Years
Location210 W San Bernardino Rd, Covina, 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:
  • Dr John Thomas Chon Sr attended and graduated from At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 2002
  NPI Data:
  • NPI Number: 1184691644
  • Provider Enumeration Date: 03/03/2006
  • Last Update Date: 05/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7911943030
  • Enrollment ID: I20050629000494

Medical Identifiers

Medical identifiers for Dr John Thomas Chon Sr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184691644NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 20A9192 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Monterey Park HospitalMonterey park, CAHospital
Greater El Monte Community HospitalSouth el monte, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gem Medical Group Corporation307298440051

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. Dr John Thomas Chon Sr allows following entities to bill medicare on his behalf.
Entity NameHealthcare Partners Affiliates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659312593
PECOS PAC ID: 7315842002
Enrollment ID: O20031204001258
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458
Entity NameHmh Emergency Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659383024
PECOS PAC ID: 7911800826
Enrollment ID: O20040128001215
Entity NameGlendale Emergency Medical Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588606834
PECOS PAC ID: 0648269001
Enrollment ID: O20040510001673
Entity NameMichael S. Agron, M.d., Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699716100
PECOS PAC ID: 2668360736
Enrollment ID: O20040707000788
Entity NameGolden West Emergency Medical Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053680298
PECOS PAC ID: 8628098936
Enrollment ID: O20051201000582
Entity NameGem Medical Group Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689364721
PECOS PAC ID: 3072984400
Enrollment ID: O20230124000274

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. Dr John Thomas Chon Sr 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
Dr John Thomas Chon Sr, DO
1435 Bradbury Rd.,
San Marino, CA 91108

Ph: (626) 791-5286		Dr John Thomas Chon Sr, DO
210 W San Bernardino Rd,
Covina, CA 91723-1515

Ph: (626) 375-1935

Reviews and Comments


Emergency Medicine Doctors in Covina, CA

Dr. Robert Joseph Leonard, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 420 W Rowland St, Covina, CA 91723
Phone: 626-331-6411    Fax: 626-251-1559
David James Lee, D.O
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 210 W San Bernardino Rd, Covina, CA 91723
Phone: 626-331-7331    
Peter L. Kennedy, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 210 W San Bernardino Rd, Covina, CA 91723
Phone: 626-915-6293    
Dr. Rio Sutikno-ong, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 420 W San Bernardino Rd, Covina, CA 91723
Phone: 626-915-6293    

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.