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

John J Pieniazek, MD

Individual provider Family Medicine Physician · NPI 1740360163

John J Pieniazek, MD is a Family Medicine Physician in Red Lake, Minnesota. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
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

Hwy 1
Red Lake, MN 56671
Phone: (218) 679-3912
Fax: (218) 679-0181
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 336-072015 (IL)

Record details

NPI number1740360163
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 17, 2006
Last updated in NPPESFebruary 29, 2008

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