Dr Chuck Chan, DO - Medicare Emergency Medicine in Orange, CA

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Dr Chuck Chan, DO is a medicare enrolled "Emergency Medicine" physician in Orange, California. His current practice location is 101 The City Dr S, Orange, California. You can reach out to his office (for appointments etc.) via phone at (714) 456-8888.

Dr Chuck Chan is licensed to practice in California (license number 20A23675) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1841877222.

Contact Information

Dr Chuck Chan, DO
101 The City Dr S,
Orange, CA 92868-3201
(714) 456-8888
Not Available

Map and Direction




Physician's Profile

Full NameDr Chuck Chan
GenderMale
SpecialityEmergency Medicine
Location101 The City Dr S, Orange, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1841877222
  • Provider Enumeration Date: 03/24/2021
  • Last Update Date: 06/03/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1052713070
  • Enrollment ID: I20240405001434

Medical Identifiers

Medical identifiers for Dr Chuck Chan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841877222NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 125.078109 (Illinois)Secondary
207P00000XEmergency Medicine 036.167218 (Illinois)Secondary
207P00000XEmergency Medicine 20A23675 (California)Primary

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 Chuck Chan allows following entities to bill medicare on his behalf.
Entity NameThe Board Of Trustees Of The University Of Illinois
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386863819
PECOS PAC ID: 3072422716
Enrollment ID: O20031112000158
Entity NameEmergency Medical Associates Of Palos, Ltd.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285918128
PECOS PAC ID: 1052578366
Enrollment ID: O20120127000880
Entity NameCepamerica Illinois Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912283110
PECOS PAC ID: 3274793633
Enrollment ID: O20120322000587
Entity NameOsf Multi-specialty Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922445527
PECOS PAC ID: 3678889789
Enrollment ID: O20150904000279

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 Chuck Chan 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 Chuck Chan, DO
808 S Wood St Rm 469a,
Chicago, IL 60612-7300

Ph: (312) 413-0696		Dr Chuck Chan, DO
101 The City Dr S,
Orange, CA 92868-3201

Ph: (714) 456-8888

Reviews and Comments


Emergency Medicine Doctors in Orange, CA

Joseph Villarreal, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 101 The City Dr S, Building 1a, Room 1009, Orange, CA 92868
Phone: 714-456-5239    
Scott Rudkin, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: Uci Medical Center, 101 The City Drive South, Orange, CA 92868
Phone: 714-456-2986    
Joelle Reynard, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Building 1a, Room 1009, Orange, CA 92868
Phone: 714-456-5239    
Dr. Inna Shniter, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1100 W Stewart Dr, Orange, CA 92868
Phone: 714-771-8113    
John C Fox, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: Uci Medical Center, 101 The City Drive South, Orange, CA 92868
Phone: 714-456-2986    
Miss Shannon Louise Toohey, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 101 The City Drive South, Bldg 200 , Suite 710, Rt 128-01, Orange, CA 92868
Phone: 715-456-5239    
Wirachin Hoonpongsimanont, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-5705    

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).

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