Quick answers
- Which hospitals does Mark J. Dehnel work at?
- Medicare's official clinician data lists Mark J. Dehnel at 1 hospital: Bellin Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark J. Dehnel see patients?
- Medicare's clinician data lists 6 practice locations, including Green Bay, WI, Marinette, WI and Wrightstown, WI. Call before your visit to confirm the address.
- What is Mark J. Dehnel's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mark J. Dehnel accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Dehnel 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 J. Dehnel?
- (920) 430-4700, as listed in official Medicare / NPI Registry data.
- What is Mark J. Dehnel's NPI number?
- 1578548947. 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 J. Dehnel works
Medicare's Facility Affiliation Data lists Mark J. Dehnel at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bellin Memorial HospitalGreen Bay, WI · Acute Care Hospital · CCN 520049
Practice locations
Addresses where Mark J. Dehnel is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1630 Commanche AveGreen Bay, WI 54313 (920) 430‑4700
- 1630 Commanche Ave, Suite 102Green Bay, WI 54313 (920) 433‑6000
- 2020 S Webster Ave, AccountingGreen Bay, WI 54301
- 2820 Roosevelt RdMarinette, WI 54143 (715) 735‑5225
- 555 Quality CtWrightstown, WI 54180 (920) 532‑6320
Group practices
Medicare enrollment lists Mark J. Dehnel as a member of these groups (CMS data updated 2026-10-02).
- Bellin Memorial Hospital Inc697 clinicians in the group
- Oconto Hospital and Medical Center Inc222 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Green Bay
Clinicians with the same Medicare primary specialty in Green Bay, WI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578548947 |
| 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