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

Carl Ray Dettwiler, MD

Individual provider Specialist · NPI 1285623819

Carl Ray Dettwiler, MD is a Gastroenterology in Lewiston, Idaho. Graduated from Loma Linda University School of Medicine in 1981, 45 years ago. Practices with Clearwater Gastroenterology, a 2-clinician group and accepts Medicare assignment. Licensed in Idaho.

Years since qualifying
45
Trained at
Loma Linda University School of Medicine
Licensed in
ID
In the registry since
2005
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

2517 17th Sreet Ste B
Lewiston, ID 83501-0001
Phone: (208) 743-4373
Fax: (208) 743-3369
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence M5110 (ID)

Record details

NPI number1285623819
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 17, 2005
Last updated in NPPESDecember 16, 2025
Certification dateDecember 16, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1981 (45 years in practice)
Group practice Clearwater Gastroenterology — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Lewiston