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

Semi Ayub, MD

Individual provider Rheumatology Physician · NPI 1487825071

Semi Ayub, MD practises Rheumatology in Saint Croix Falls, Wisconsin. Qualified in 2004, 22 years ago. Practices with St Croix Regional Medical Center, a 132-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Minnesota and Wisconsin.

Years since qualifying
22
Licensed in
MN, WI
In the registry since
2008
Specialties on file
2
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

235 E State St
Saint Croix Falls, WI 54024-4117
Phone: (715) 483-3221
Fax: (715) 483-0507
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2855 Campus Dr Ste 400, Plymouth, MN 55441-2659 — (763) 577-7400

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 55184 (WI)
Rheumatology Physician Taxonomy 207RR0500X · Licence 53857 (MN)

Record details

NPI number1487825071
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2008
Last updated in NPPESJanuary 4, 2021
Certification dateJanuary 4, 2021

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice St. Croix Regional Medical Center — 132 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 patients120
Services billed 1,066 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Colleagues at St Croix Regional Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 132 clinicians in the practice; 12 are shown here.

Other providers in Saint Croix Falls