Michael Yao-jen Chang, DO - Medicare Physical Medicine And Rehabilitation in Walnut Creek, CA

Michael Yao-jen Chang, DO is a medicare enrolled "Physical Medicine & Rehabilitation - Pain Medicine" physician in Walnut Creek, California. He graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Physical Medicine And Rehabilitation. He is a member of the group practice Golden State Orthopedics And Spine and his current practice location is 2405 Shadelands Dr, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 939-8585.

Michael Yao-jen Chang is licensed to practice in California (license number 20A8518) 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 1205934262.

Contact Information

Michael Yao-jen Chang, DO
2405 Shadelands Dr,
Walnut Creek, CA 94598-2444
(925) 939-8585
(925) 933-2709

Map and Direction




Physician's Profile

Full NameMichael Yao-jen Chang
GenderMale
SpecialityPhysical Medicine And Rehabilitation
Experience22 Years
Location2405 Shadelands Dr, Walnut Creek, 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:
  • Michael Yao-jen Chang graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1205934262
  • Provider Enumeration Date: 09/20/2006
  • Last Update Date: 09/16/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4688774664
  • Enrollment ID: I20070703000627

Medical Identifiers

Medical identifiers for Michael Yao-jen Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205934262NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2081P2900XPhysical Medicine & Rehabilitation - Pain Medicine 20A8518 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Concord CampusConcord, CAHospital
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Golden State Orthopedics And Spine8224940739153

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. Michael Yao-jen Chang allows following entities to bill medicare on his behalf.
Entity NameGolden State Orthopedics & Spine
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972552990
PECOS PAC ID: 8224940739
Enrollment ID: O20031103000721
Entity NameJohn Muir Trauma Physicians Billing Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093864837
PECOS PAC ID: 3476542515
Enrollment ID: O20050420001452

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. Michael Yao-jen 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
Michael Yao-jen Chang, DO
Po Box 31396,
Walnut Creek, CA 94598-8396

Ph: (925) 939-8585
Michael Yao-jen Chang, DO
2405 Shadelands Dr,
Walnut Creek, CA 94598-2444

Ph: (925) 939-8585

Reviews and Comments


Physical Medicine & Rehabilitation Doctors in Walnut Creek, CA

Chelsea Paskowski, DPT
Physical Medicine & Rehabilitation
Medicare: May Accept Medicare Assignments
Practice Location: 120 La Casa Via Ste 212, Walnut Creek, CA 94598
Phone: 925-939-8710    
Anita Weinerman Roth, MD
Physical Medicine & Rehabilitation
Medicare: Medicare Enrolled
Practice Location: 120 La Casa Via, Ste 208, Walnut Creek, CA 94598
Phone: 925-256-4045    Fax: 925-256-9346
Dr. John A Dana Jr., M.D.
Physical Medicine & Rehabilitation
Medicare: Accepting Medicare Assignments
Practice Location: 1450 Treat Blvd # 200, Walnut Creek, CA 94597
Phone: 925-296-9750    Fax: 925-296-9042
Kenneth W Kim, MD
Physical Medicine & Rehabilitation
Medicare: Accepting Medicare Assignments
Practice Location: 450 N Wiget Ln, Walnut Creek, CA 94598
Phone: 925-691-9806    Fax: 925-691-9807
Dr. Carl Walter Fieser Jr., M.D.
Physical Medicine & Rehabilitation
Medicare: Accepting Medicare Assignments
Practice Location: 450 N Wiget Ln, Walnut Creek, CA 94598
Phone: 925-691-9806    Fax: 925-691-9807
Anthony Yenko,
Physical Medicine & Rehabilitation
Medicare: Accepting Medicare Assignments
Practice Location: 2625 Shadelands Dr, Walnut Creek, CA 94598
Phone: 925-939-8585    

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.