Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Regan Michael Seipp, MD

Individual provider Internal Medicine Physician · NPI 1306256284

Dr. Regan Michael Seipp, MD is a Nephrology in Winfield, Illinois. Graduated from Creighton University School of Medicine in 2014, 12 years ago. Practices with Dupage Medical Group Ltd, a 1,328-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Arizona and Illinois.

Years since qualifying
12
Trained at
Creighton University School of Medicine
Licensed in
AZ, IL
In the registry since
2014
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

25 N Winfield Rd Ste 405
Winfield, IL 60190-1379
Phone: (630) 873-8889
Fax: (630) 456-7138
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 100 Spalding Dr Ste 202, Naperville, IL 60540-6552 — (630) 873-8889

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 036148873 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 50892 (AZ)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (AZ)

Record details

NPI number1306256284
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2014
Last updated in NPPESAugust 18, 2023
Certification dateAugust 18, 2023
Mailing addressPo Box 713260, Chicago, IL 60677-1260

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Dupage Medical Group Ltd — 1328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Winfield