Walter W Chien, MD - Medicare Cardiac Electrophysiology in Stockton, CA

Walter W Chien, MD is a medicare enrolled "Internal Medicine - Clinical Cardiac Electrophysiology" physician in Stockton, California. He went to Washington University School Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Cardiac Electrophysiology. He is a member of the group practice County Of San Joaquin and his current practice location is 2800 N California St Ste 8, Stockton, California. You can reach out to his office (for appointments etc.) via phone at (209) 938-0232.

Walter W Chien is licensed to practice in California (license number G56242) 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 1386615631.

Contact Information

Walter W Chien, MD
2800 N California St Ste 8,
Stockton, CA 95204-3759
(209) 938-0232
(209) 938-0233

Map and Direction




Physician's Profile

Full NameWalter W Chien
GenderMale
SpecialityCardiac Electrophysiology
Experience40 Years
Location2800 N California St Ste 8, Stockton, 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:
  • Walter W Chien attended and graduated from Washington University School Of Medicine in 1984
  NPI Data:
  • NPI Number: 1386615631
  • Provider Enumeration Date: 01/26/2006
  • Last Update Date: 11/04/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4183658511
  • Enrollment ID: I20050923000981

Medical Identifiers

Medical identifiers for Walter W Chien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386615631NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease G56242 (California)Secondary
207RC0001XInternal Medicine - Clinical Cardiac Electrophysiology G56242 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of San Joaquin6002703436119

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. Walter W Chien allows following entities to bill medicare on his behalf.
Entity NameDignity Health Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700803418
PECOS PAC ID: 7810800661
Enrollment ID: O20031107000709
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659450955
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000757
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699885079
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000784
Entity NameCounty Of San Joaquin
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801830583
PECOS PAC ID: 6002703436
Enrollment ID: O20040301001287
Entity NameSan Joaquin Faculty Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225063761
PECOS PAC ID: 4082631395
Enrollment ID: O20051026000742
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Other Medical Care Group
Entity IdentifiersNPI Number: 1629301346
PECOS PAC ID: 1254244973
Enrollment ID: O20110318000170

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. Walter W Chien 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
Walter W Chien, MD
3400 Data Dr,
Rancho Cordova, CA 95670-7956

Ph: () -
Walter W Chien, MD
2800 N California St Ste 8,
Stockton, CA 95204-3759

Ph: (209) 938-0232

Reviews and Comments


Internal Medicine Doctors in Stockton, CA

Jasmine Hundal,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7210 Murray Dr, Stockton, CA 95210
Phone: 209-751-1919    
Abhinandan Anand Raman, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1805 N California St Ste 201, Stockton, CA 95204
Phone: 209-645-3771    
Dr. Navneet Kaur, M.B.B.S
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1805 N California St Ste 201, Stockton, CA 95204
Phone: 209-645-4005    Fax: 209-645-6344
David C Lim, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 415 E Harding Way, Suite D, Stockton, CA 95204
Phone: 209-944-5750    
Xing-jian Lu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7373 West Ln, Stockton, CA 95210
Phone: 209-476-2000    
Kwabena Opoku-mensah Adubofour, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2524 E Main St, Stockton, CA 95205
Phone: 800-249-9497    Fax: 800-249-9497
Dr. Ronald A Kass, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1801 E March Ln Ste C310, Stockton, CA 95210
Phone: 209-465-5731    Fax: 209-465-0230

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.