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

Dr. Don A. Sielaff, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1144320839

Dr. Don A. Sielaff, MD is an Obstetrics & Gynecology Physician in Lincoln, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

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

145 10th St
Lincoln, IL 62656-1559
Phone: (217) 732-3182
Show map & directions

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

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 037-073027 (IL)

Record details

NPI number1144320839
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 23, 2006
Last updated in NPPESJanuary 21, 2025
Certification dateJanuary 21, 2025
Mailing address145 10th St, Lincoln, IL 62656-1559

Other providers in Lincoln