Karen Chang, MD - Medicare Hospitalist in Lynwood, CA

Karen Chang, MD is a medicare enrolled "Emergency Medicine" physician in Lynwood, California. She went to University Of California, Geffen School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Hospitalist. She is a member of the group practice Cep America - California and her current practice location is 3630 E Imperial Hwy, Emergency Department, Lynwood, California. You can reach out to her office (for appointments etc.) via phone at (310) 900-4525.

Karen Chang is licensed to practice in California (license number A95327) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1023026242.

Contact Information

Karen Chang, MD
3630 E Imperial Hwy, Emergency Department,
Lynwood, CA 90262-2609
(310) 900-4525
(310) 900-8287

Map and Direction




Physician's Profile

Full NameKaren Chang
GenderFemale
SpecialityHospitalist
Experience21 Years
Location3630 E Imperial Hwy, Lynwood, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Karen Chang attended and graduated from University Of California, Geffen School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1023026242
  • Provider Enumeration Date: 08/03/2006
  • Last Update Date: 05/07/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 6103926464
  • Enrollment ID: I20070716000429

Medical Identifiers

Medical identifiers for Karen Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023026242NPI-NPPES
00A953270MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A95327 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Saint Francis Medical CenterLynwood, CAHospital
Cedar-sinai Marina Del Rey HospitalMarina del rey, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cep America - California6103739131974

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. Karen Chang allows following entities to bill medicare on her behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458
Entity NamePetrel Emergency Physicians, A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154734663
PECOS PAC ID: 2264658525
Enrollment ID: O20140722000913

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. Karen 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
Karen Chang, MD
3630 E Imperial Hwy, Emergency Department,
Lynwood, CA 90262-2609

Ph: (310) 900-4525
Karen Chang, MD
3630 E Imperial Hwy, Emergency Department,
Lynwood, CA 90262-2609

Ph: (310) 900-4525

Reviews and Comments


Emergency Medicine Doctors in Lynwood, CA

Arturo Pelayo, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3630 East Imperial Hwy, Lynwood, CA 90262
Phone: 310-900-8900    
Dr. Viet Quoc Duong, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3630 E Imperial Hwy, Lynwood, CA 90262
Phone: 310-900-4534    
Clayton D Kazan, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3630 East Imperial Highway, Lynwood, CA 90262
Phone: 310-900-8900    
Maria L Davis, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3630 East Imperial Hwy, Lynwood, CA 90262
Phone: 310-900-4534    
Michael Y Malik, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3660 E Imperial Hwy, Lynwood, CA 90262
Phone: 310-608-4898    Fax: 310-608-4884
Van H Miller, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3630 East Imperial Highway, Lynwood, CA 90262
Phone: 310-900-8900    

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.