Brennan Chang, - Medicare Emergency Medicine in Riverside, CA

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Brennan Chang, is a medicare enrolled "Emergency Medicine" physician in Riverside, California. His current practice location is 4445 Magnolia Ave, Riverside, California. You can reach out to his office (for appointments etc.) via phone at (951) 788-3000.

Brennan Chang is licensed to practice in New York (license number 326747) 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 1306473343.

Contact Information

Brennan Chang,
4445 Magnolia Ave,
Riverside, CA 92501-4135
(951) 788-3000
Not Available

Map and Direction




Physician's Profile

Full NameBrennan Chang
GenderMale
SpecialityEmergency Medicine
Location4445 Magnolia Ave, Riverside, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1306473343
  • Provider Enumeration Date: 03/26/2020
  • Last Update Date: 11/20/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2062873680
  • Enrollment ID: I20230731000500

Medical Identifiers

Medical identifiers for Brennan Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306473343NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 326747 (New York)Primary
207P00000XEmergency Medicine A178648 (California)Secondary
207P00000XEmergency Medicine MD-52023 (Iowa)Secondary

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. Brennan Chang allows following entities to bill medicare on his behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458

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. Brennan Chang 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
Brennan Chang,
4445 Magnolia Ave,
Riverside, CA 92501-4135

Ph: (951) 788-3000		Brennan Chang,
4445 Magnolia Ave,
Riverside, CA 92501-4135

Ph: (951) 788-3000

Reviews and Comments


Emergency Medicine Doctors in Riverside, CA

Dr. Chad Leroy Clark, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3865 Jackson St, Riverside, CA 92503
Phone: 951-352-5666    Fax: 951-352-5445
Dr. David Stuart Siegel, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3425 Torrey St, Riverside, CA 92503
Phone: 561-685-6148    
Doug John Williamson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10800 Magnolia Ave, Riverside, CA 92505
Phone: 909-353-2000    
Kenneth Johnson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4445 Magnolia Ave, Riverside, CA 92501
Phone: 951-788-3537    Fax: 951-788-3173
Dr. Ernest Woodhouse, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 4440 Magnolia Ave., Riverside, CA 92501
Phone: 951-788-3200    
Dr. Michael Kang, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4445 Magnolia Ave, Riverside, CA 92501
Phone: 951-684-3910    
Dr. Humberto Alirio Silva, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3865 Jackson St, Riverside, CA 92503
Phone: 951-352-5666    Fax: 951-352-5445

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.