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

Mark Nishiyama, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1033279849

Mark Nishiyama, MD is an Obstetrics/Gynecology in Centralia, Washington. Graduated from Loma Linda University School of Medicine in 1987, 39 years ago. Practices with Providence Health and Services Washington, a 480-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
39
Trained at
Loma Linda University School of Medicine
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

1000 S Scheuber Rd
Centralia, WA 98531-8877
Phone: (360) 330-8950
Fax: (360) 330-8955
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD00039478 (WA)

Record details

NPI number1033279849
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 11, 2006
Last updated in NPPESJune 23, 2021
Certification dateJune 23, 2021
Mailing address1000 S Scheuber Rd, Centralia, WA 98531-8877

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Providence Health And Services Washington — 480 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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