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

Individual provider Internal Medicine Physician · NPI 1770521932

Chieh C MA, MD is an Internal Medicine in Everett, Washington. Graduated from Medical College of Wisconsin in 2002, 24 years ago. Practices with Optum Care Washington PLLC, a 685-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
24
Trained at
Medical College of Wisconsin
Licensed in
WA
In the registry since
2006
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

3927 Rucker Ave
Everett, WA 98201-4833
Phone: (425) 339-5422
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD00044791 (WA)

Record details

NPI number1770521932
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2006
Last updated in NPPESJune 17, 2026
Certification dateJune 17, 2026
Mailing address7600 Evergreen Way, Everett, WA 98203-6421

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2002 (24 years in practice)
Group practice Optum Care Washington Pllc — 685 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 on file with Medicare

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