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

Grant August Wintheiser, MD

Individual provider Internal Medicine Physician · NPI 1043770092

Grant August Wintheiser, MD practises Hematology/Oncology in Coon Rapids, Minnesota. Graduated from Creighton University School of Medicine in 2019, 7 years ago. Practices with Allina Health System, a 3,867-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Minnesota.

Years since qualifying
7
Trained at
Creighton University School of Medicine
Licensed in
MN
In the registry since
2019
Specialties on file
3
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

11850 Blackfoot St NW Ste 300
Coon Rapids, MN 55433-2772
Phone: (763) 236-0808
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 67278 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 67278 (MN)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 67278 (MN)

Record details

NPI number1043770092
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2019
Last updated in NPPESOctober 1, 2026
Certification dateOctober 1, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Allina Health System — 3867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients151
Services billed 245 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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. Those with a page here are linked.

  • Abbott Northwestern Hospital Hospital · Minneapolis, MN
  • Mayo Clinic Hospital Rochester Hospital · Rochester, MN · listed as Mayo Clinic Hospital-Rochester
  • Buffalo Hospital Hospital · Buffalo, MN
  • Cambridge Medical Center Hospital · Cambridge, MN
  • Mercy Hospital Hospital · Coon Rapids, MN

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.

Other providers in Coon Rapids