Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Walter W Chien, MD

Individual provider Cardiovascular Disease Physician · NPI 1386615631

Walter W Chien, MD is a Cardiac Electrophysiology in Stockton, California. Graduated from Washington University School of Medicine in 1984, 42 years ago. Practices with County of San Joaquin, a 197-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
42
Trained at
Washington University School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2800 N California St Ste 8
Stockton, CA 95204-3759
Phone: (209) 938-0232
Fax: (209) 938-0233
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence G56242 (CA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence G56242 (CA)

Record details

NPI number1386615631
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 26, 2006
Last updated in NPPESNovember 4, 2022
Certification dateNovember 4, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice County Of San Joaquin — 197 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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