Brian Chang, - Medicare Emergency Medicine in San Francisco, CA

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Brian Chang, is a medicare enrolled "Emergency Medicine" physician in San Francisco, California. He went to Warren Alpert Medical School Of Brown University and graduated in 2014 and has 10 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Pacific Redwood Medical Group Inc, Permanente Medical Group Inc and his current practice location is 521 Parnassus Ave, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-1550.

Brian Chang is licensed to practice in California (license number 141050) 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 1164840013.

Contact Information

Brian Chang,
521 Parnassus Ave,
San Francisco, CA 94143-2206
(415) 353-1550
Not Available

Map and Direction




Physician's Profile

Full NameBrian Chang
GenderMale
SpecialityEmergency Medicine
Experience10 Years
Location521 Parnassus Ave, San Francisco, 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:
  • Brian Chang attended and graduated from Warren Alpert Medical School Of Brown University in 2014
  NPI Data:
  • NPI Number: 1164840013
  • Provider Enumeration Date: 03/28/2014
  • Last Update Date: 02/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9830481480
  • Enrollment ID: I20170201001567

Medical Identifiers

Medical identifiers for Brian Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164840013NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 141050 (California)Primary
282N00000XGeneral Acute Care Hospital (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health ClearlakeClearlake, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Pacific Redwood Medical Group Inc549665270345
Permanente Medical Group Inc89219102258376

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. Brian Chang allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NamePacific Redwood Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033103676
PECOS PAC ID: 5496652703
Enrollment ID: O20031215000997
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513
Entity NameGolden Gate Urgent Care Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073883179
PECOS PAC ID: 0648247866
Enrollment ID: O20040915001152
Entity NameAcute Medical Providers Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942571146
PECOS PAC ID: 1153589874
Enrollment ID: O20120225000135

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. Brian 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
Brian Chang,
505 Parnassus Ave M-24,
San Francisco, CA 94010

Ph: (415) 353-1550		Brian Chang,
521 Parnassus Ave,
San Francisco, CA 94143-2206

Ph: (415) 353-1550

Reviews and Comments


Emergency Medicine Doctors in San Francisco, CA

Paul Robinson,
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Georgina Lisseth Calderon, M.D.
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Carli Renske Reisdorf, MD
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Timothy Bauer Duncan, MD
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Phone: 209-342-2300    Fax: 209-524-4240
Bichhuong M Dinh, MD
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Practice Location: 3555 Cesar Chavez, San Francisco, CA 94110
Phone: 240-447-1281    
Dr. Lauren Elizabeth Chalwell, M.D.
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Practice Location: 1001 Potrero Avenue Department Of Emergency Medicine, San Francisco General Hospital,, San Francisco, CA 94110
Phone: 415-206-5753    

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.

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