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

Karl S Demarco, MD

Individual provider Family Medicine Physician · NPI 1205483781

Karl S Demarco, MD is a Family Practice in Tyndall, South Dakota. Qualified in 2019, 7 years ago. Practices with St Michael's Hospital, Inc, a 17-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
7
Licensed in
SD
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 →

Practice location Address checks out

410 W 16th Ave
Tyndall, SD 57066-2318
Phone: (605) 589-2100
Fax: (605) 589-2115
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 13975 (SD)

Record details

NPI number1205483781
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 20, 2019
Last updated in NPPESSeptember 12, 2024
Certification dateSeptember 12, 2024

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice St Michael'S Hospital, Inc. — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Tyndall