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

Dr. Benjamin William Simpson, MD

Individual provider Family Medicine Physician · NPI 1538502521

Dr. Benjamin William Simpson, MD is a Family Practice in Lewistown, Montana. Qualified in 2013, 13 years ago. Practices with Central Montana Medical Facilities Inc, a 26-clinician group and accepts Medicare assignment. Licensed in Montana and Washington.

Years since qualifying
13
Licensed in
MT, WA
In the registry since
2013
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

408 Wendell Ave
Lewistown, MT 59457-2261
Phone: (406) 535-1502
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MED-PHYS-LIC-57836 (MT)
Family Medicine Physician Taxonomy 207Q00000X · Licence MD60587849 (WA)

Record details

NPI number1538502521
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 9, 2013
Last updated in NPPESSeptember 12, 2022
Certification dateSeptember 12, 2022
Mailing address408 Wendell Ave, Lewistown, MT 59457-2261

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Central Montana Medical Facilities Inc — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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