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

Gregory A Kays, MD

Individual provider Emergency Medicine Physician · NPI 1093780439

Gregory A Kays, MD practises Emergency Medicine in Red Wing, Minnesota. Graduated from University of Arkansas College of Medicine in 1989, 37 years ago. Practices with Mayo Clinic Health System-Southeast Minnesota Region, a 561-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
37
Trained at
University of Arkansas College of Medicine
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

701 Hewitt Blvd
Red Wing, MN 55066-2848
Phone: (651) 267-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 35276 (MN)

Record details

NPI number1093780439
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 21, 2006
Last updated in NPPESMarch 13, 2026
Certification dateMarch 13, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Mayo Clinic Health System-Southeast Minnesota Region — 561 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients111
Services billed 123 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

  • Mayo Clinic Health System In Red Wing Hospital · Red Wing, MN

Colleagues at Mayo Clinic Health System-Southeast Minnesota Region

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 561 clinicians in the practice; 12 are shown here.

Other providers in Red Wing