Matthew Christopher O'Brien, DO
Matthew Christopher O'Brien, DO is a General Surgery in Janesville, Wisconsin. Graduated from Midwestern University, Chicago College of Osteopathic Med in 2020, 6 years ago. Practices with Dean Health Systems Inc, a 1,184-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Wisconsin.
- Years since qualifying
- 6
- Trained at
- Midwestern University, Chicago College of Osteopathic Med
- Licensed in
- WI
- In the registry since
- 2020
What do these letters mean?
- DO — Doctor of Osteopathic Medicine
- A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.
Practice location Address checks out
3200 E Racine StJanesville, WI 53546-2343
Phone: (608) 371-8000
Fax: (608) 373-8713
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 (2)
- 4201 Saint Antoine St Ste 9c, Detroit, MI 48201-2153 — (313) 577-5009
- 515 22nd Ave, Monroe, WI 53566-1569 — (608) 324-2000
Specialties & licences
| Surgery Physician (primary) | Taxonomy 208600000X · Licence 81821 (WI) |
|---|
Record details
| NPI number | 1417577024 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | DO |
| Sole proprietor | No |
| NPI enumerated | April 23, 2020 |
| Last updated in NPPES | October 8, 2025 |
| Certification date | October 8, 2025 |
Medicare enrollment
| Medicare specialty | GENERAL SURGERY |
|---|---|
| Medical school | MIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED |
| Graduated | 2020 (6 years in practice) |
| Group practice | Dean Health Systems Inc — 1184 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
Other providers in Janesville
-
Dr. Steven L Falk, MD
2222 Cornell Ave, Janesville, WI 53545-2111 · (608) 755-1395
-
David C Lynn, MD
510 N Terrace St, Janesville, WI 53548-2906 · (608) 756-7277
-
Mark E McDade, MD
3200 E Racine St, Janesville, WI 53546-2343 · (608) 371-8000
-
Michael J McGauley, DO
510 N Terrace St, Janesville, WI 53548-2906 · (608) 756-7277
-
Tabitha L. Ongstad
3200 E Racine St, Janesville, WI 53546-2343 · (608) 371-8000
-
David L Rainiero, MD
3200 E Racine St, Janesville, WI 53546-2343 · (608) 371-8000
-
Michael L Rainiero, MD
3200 E Racine St, Janesville, WI 53546-2343 · (608) 371-8000
-
William H Squires, MD
1000 Mineral Point Ave, Janesville, WI 53548-2940 · (608) 756-6731