Dr. David Nilsen, DO
Dr. David Nilsen, DO is an Orthopedic Surgery in Janesville, Wisconsin. Graduated from Michigan State University College of Osteopathic Medicine in 2005, 21 years ago. Practices with Mercy Health System Corporation, a 751-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona, Pennsylvania and Wisconsin.
- Years since qualifying
- 21
- Trained at
- Michigan State University College of Osteopathic Medicine
- Licensed in
- AZ, PA, WI
- In the registry since
- 2008
- Specialties on file
- 4
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
557 N Washington StJanesville, WI 53548-2907
Phone: (608) 754-6000
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)
- N2950 State Road 67, Lake Geneva, WI 53147-2655 — (262) 245-0535
Specialties & licences
| Orthopaedic Surgery Physician (primary) | Taxonomy 207X00000X · Licence 1735-321 (WI) |
|---|---|
| Orthopaedic Surgery Physician | Taxonomy 207X00000X · Licence OS013810 (PA) |
| Orthopaedic Surgery Physician | Taxonomy 207X00000X · Licence 005533 (AZ) |
| Orthopaedic Surgery Physician | Taxonomy 207X00000X · Licence OT011238 (PA) |
Record details
| NPI number | 1588811244 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | DO |
| Sole proprietor | No |
| NPI enumerated | August 25, 2008 |
| Last updated in NPPES | June 22, 2026 |
| Certification date | June 22, 2026 |
Medicare enrollment
| Medicare specialty | ORTHOPEDIC SURGERY |
|---|---|
| Medical school | MICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE |
| Graduated | 2005 (21 years in practice) |
| Group practice | Mercy Health System Corporation — 751 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
Other providers in Janesville
-
Ellen M Obrien, MD
5026 N Northwood Trce, Janesville, WI 53545-8990 · (608) 295-9500
-
Douglas R Palmer, MD
3524 E Milwaukee St, Janesville, WI 53546-1626 · (608) 756-7100
-
Dr. Pinak Y Shukla, MD
3524 E Milwaukee St, Janesville, WI 53546-1626 · (608) 756-7100