John F. Brennan, MD
John F. Brennan, MD is a Nephrology in Racine, Wisconsin. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 1991, 35 years ago. Practices with Milwaukee Nephrologists SC, a 21-clinician group and accepts Medicare assignment. Licensed in Wisconsin.
- Years since qualifying
- 35
- Trained at
- R Franklin University of Med & SCI/Chicago Medical School
- Licensed in
- WI
- In the registry since
- 2006
- Specialties on file
- 2
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
3803 Spring St Ste 600Racine, WI 53405-1660
Phone: (262) 687-8312
Fax: (262) 687-8796
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Nephrology Physician (primary) | Taxonomy 207RN0300X · Licence 37698 (WI) |
|---|---|
| Internal Medicine Physician | Taxonomy 207R00000X · Licence 37698 (WI) |
Record details
| NPI number | 1154351153 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | July 4, 2006 |
| Last updated in NPPES | March 24, 2026 |
| Certification date | March 24, 2026 |
Medicare enrollment
| Medicare specialty | NEPHROLOGY |
|---|---|
| Also practises | INTERNAL MEDICINE |
| Medical school | R FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL |
| Graduated | 1991 (35 years in practice) |
| Group practice | Milwaukee Nephrologists Sc — 21 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Practice locations | 2 on file with Medicare |