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

Dr. Benjamin F Merrifield, MD

Individual provider Gastroenterology Physician · NPI 1083695167

Dr. Benjamin F Merrifield, MD is a Gastroenterology in Olympia, Washington. Graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1998, 28 years ago. Practices with Puget Sound Gastroenterology PLLC, a 59-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
28
Trained at
Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Licensed in
WA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

209 Lilly Rd NE
Olympia, WA 98506
Phone: (360) 413-8250
Fax: (360) 413-8830
Show map & directions

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

Additional practice locations (1)

  • 500 Lilly Rd Ne, Olympia, WA 98506-5195 — (360) 413-8250

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD00044510 (WA)

Record details

NPI number1083695167
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 7, 2005
Last updated in NPPESMarch 7, 2023
Certification dateApril 21, 2021

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolCLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
Graduated 1998 (28 years in practice)
Group practice Puget Sound Gastroenterology Pllc — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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