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

Sandra I Martens, MD

Individual provider Family Medicine Physician · NPI 1154330470

Sandra I Martens, MD is a Family Medicine Physician in Sturgeon Bay, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
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

323 S 18th Ave
Sturgeon Bay, WI 54235-1401
Phone: (920) 746-0510
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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 39531 (WI)

Record details

NPI number1154330470
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 5, 2006
Last updated in NPPESJuly 8, 2007
Mailing address323 S 18th Ave, Sturgeon Bay, WI 54235-1401

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