Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Steven William Sonnesyn, MD

Individual provider Infectious Disease Physician · NPI 1275600231

Steven William Sonnesyn, MD is registered under Infectious Disease in Minneapolis, Minnesota. Graduated from University of Colorado School of Medicine, Denver in 1987, 39 years ago. Practices with Allina Health System, a 3,867-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Minnesota.

Years since qualifying
39
Trained at
University of Colorado School of Medicine, Denver
Licensed in
MN
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

800 E 28th St
Minneapolis, MN 55407-3723 Not confirmed with CMS for 11 years — call before visiting
Phone: (952) 746-8360
Fax: (952) 746-8368
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 34084 (MN)

Record details

NPI number1275600231
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 28, 2006
Last updated in NPPESMarch 12, 2015

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1987 (39 years in practice)
Group practice Allina Health System — 3867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 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 patients216
Services billed 671 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Allina Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3867 clinicians in the practice; 12 are shown here.

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