Dr. Mary Johanna Clark, DO
Dr. Mary Johanna Clark, DO is an Internal Medicine in LA Crosse, Wisconsin. Qualified in 1987, 39 years ago. Practices with Mayo Clinic Health System-Southwest Wisconsin Region Inc, a 552-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado and Wisconsin.
- Years since qualifying
- 39
- Licensed in
- CO, WI
- In the registry since
- 2006
- Specialties on file
- 2
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
700 W Ave SLA Crosse, WI 54601-8806
Phone: (608) 785-0940
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)
- 2121 North Ave, Grand Junction, CO 81501-6428 — (970) 242-0731
Specialties & licences
| Internal Medicine Physician (primary) | Taxonomy 207R00000X · Licence 81803 (WI) |
|---|---|
| Internal Medicine Physician | Taxonomy 207R00000X · Licence 29800 (CO) |
Record details
| NPI number | 1912917949 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Female |
| Credentials | DO |
| Sole proprietor | No |
| NPI enumerated | August 9, 2006 |
| Last updated in NPPES | October 16, 2025 |
| Certification date | October 16, 2025 |
Medicare enrollment
| Medicare specialty | INTERNAL MEDICINE |
|---|---|
| Medical school | OTHER |
| Graduated | 1987 (39 years in practice) |
| Group practice | Mayo Clinic Health System-Southwest Wisconsin Region Inc — 552 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Telehealth | Offers telehealth services |
Other providers in LA Crosse
-
Joel A Burnet, DO
1836 S Ave, LA Crosse, WI 54601-5429 · (608) 782-7300
-
Stephanie L Carroll, MD
1836 S Ave, LA Crosse, WI 54601-5429 · (608) 782-7300
-
Sanda A Cepoi, MD
700 W Ave S, LA Crosse, WI 54601 · (608) 785-0940
-
Ronald G Chaney, MD
1836 S Ave, LA Crosse, WI 54601-5429 · (608) 782-7300
-
Caroline G. Clune, MD
800 W Ave S, LA Crosse, WI 54601-8806 · (605) 782-9760
-
Dr. Elizabeth Ann Cogbill, MD
1836 S Ave, LA Crosse, WI 54601-5429 · (608) 782-7300
-
John J Conzemius, MD
1836 S Ave, LA Crosse, WI 54601-5429 · (608) 782-7300
-
Fred W Cox III, MD
1836 S Ave, LA Crosse, WI 54601-5429 · (608) 782-7300