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

Dr. Sandra Ann Sieck, MD

Individual provider Internal Medicine Physician · NPI 1528609039

Dr. Sandra Ann Sieck, MD is an Internal Medicine in LA Crosse, Wisconsin. Graduated from University of Missouri, Kansas City, School of Medicine in 1989, 37 years ago. Practices with Gundersen Lutheran Medical Center Inc, a 896-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
37
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
WI
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1836 S Ave
LA Crosse, WI 54601-5429
Phone: (608) 782-7300
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 59976 (WI)

Record details

NPI number1528609039
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2019
Last updated in NPPESOctober 5, 2019
Mailing address1836 South Ave, La Crosse, WI 54601-5429

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Gundersen Lutheran Medical Center Inc — 896 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in LA Crosse