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

Dr. John Andrew Berg, MD

Individual provider Family Medicine Physician · NPI 1457321226

Dr. John Andrew Berg, MD is registered under Family Practice in Desmet, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 1994, 32 years ago. Practices with City of Redfield, a 12-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
32
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

221 Calumet Ave SW
Desmet, SD 57231 Not confirmed with CMS for 18 years — call before visiting
Phone: (605) 854-9100
Fax: (605) 854-9238
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

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 4247 (SD)

Record details

NPI number1457321226
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 25, 2006
Last updated in NPPESJanuary 2, 2008

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 1994 (32 years in practice)
Group practice City Of Redfield — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients43
Services billed 92 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at City of Redfield

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 12 clinicians in the practice; 10 are shown here.