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

Mr. John Lloyd Loewen, MD

Individual provider Family Medicine Physician · NPI 1376693770

Mr. John Lloyd Loewen, MD is a Family Practice in Niagara, Wisconsin. Qualified in 1975, 51 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
51
Licensed in
WI
In the registry since
2007
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

615 Washington Ave
Niagara, WI 54151-1213
Phone: (715) 251-3104
Fax: (715) 251-1693
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 20876 020 (WI)

Record details

NPI number1376693770
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 10, 2007
Last updated in NPPESJuly 8, 2007
Mailing address615 Washington Ave, Niagara, WI 54151-1213

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1975 (51 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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