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

Dr. Joseph R Willett, DO

Individual provider Internal Medicine Physician · NPI 1558337865

Dr. Joseph R Willett, DO is an Internal Medicine Physician in Marshall, Minnesota. Licensed in Minnesota. Registered with an NPI since 2006.

Licensed in
MN
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

300 S Bruce St
Marshall, MN 56258
Phone: (507) 532-9631
Fax: (507) 532-1176
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 34362 (MN)

Record details

NPI number1558337865
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 27, 2006
Last updated in NPPESJuly 13, 2026
Mailing address300 South Bruce St, Marshall, MN 56258

Other providers in Marshall