Quick answers
- Which hospitals does Mark A. Bisignani work at?
- Medicare's official clinician data lists Mark A. Bisignani at 2 hospitals: Adventist Health Ukiah Valley and Providence Santa Rosa Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark A. Bisignani see patients?
- Medicare's clinician data lists 5 practice locations, including Ukiah, CA, Shakopee, MN and Robbinsdale, MN. Call before your visit to confirm the address.
- What is Mark A. Bisignani's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Mark A. Bisignani accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Bisignani accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark A. Bisignani?
- (707) 463-3636, as listed in official Medicare / NPI Registry data.
- What is Mark A. Bisignani's NPI number?
- 1487655882. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark A. Bisignani works
Medicare's Facility Affiliation Data lists Mark A. Bisignani at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Ukiah ValleyUkiah, CA · Acute Care Hospital · CCN 050301
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
Practice locations
Addresses where Mark A. Bisignani is enrolled with Medicare (CMS data updated 2026-10-02).
- 1165 S Dora StUkiah, CA 95482 (707) 463‑3636
- 1475 Saint Francis AveShakopee, MN 55379 (952) 428‑2663
- 3435 W Broadway AveRobbinsdale, MN 55422 (763) 521‑1426
- 3555 Round Barn CirSanta Rosa, CA 95403 (707) 528‑1050
- 501 Hospital RdNew Richmond, WI 54017 (715) 243‑2950
Group practices
Medicare enrollment lists Mark A. Bisignani as a member of these groups (CMS data updated 2026-10-02).
- Providence Medical Foundation1,466 clinicians in the group
- Minneapolis Radiation Oncology PA19 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Pittsburgh School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487655882 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians