Quick answers
- Which hospitals does Mark S. Van Anrooy work at?
- Medicare's official clinician data lists Mark S. Van Anrooy at 3 hospitals: FHN Memorial Hospital, Saint Anthony Medical Center and UW Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark S. Van Anrooy see patients?
- Medicare's clinician data lists 4 practice locations, including Freeport, IL and Rockford, IL. Call before your visit to confirm the address.
- What is Mark S. Van Anrooy's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mark S. Van Anrooy accept Medicare assignment?
- Yes. Medicare's clinician data says Mark S. Van Anrooy 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 S. Van Anrooy?
- (815) 599-6000, as listed in official Medicare / NPI Registry data.
- What is Mark S. Van Anrooy's NPI number?
- 1578541470. 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 S. Van Anrooy works
Medicare's Facility Affiliation Data lists Mark S. Van Anrooy at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- FHN Memorial HospitalFreeport, IL · Acute Care Hospital · CCN 140160
- Saint Anthony Medical CenterRockford, IL · Acute Care Hospital · CCN 140233
- UW HealthRockford, IL · Acute Care Hospital · CCN 140228
Practice locations
Addresses where Mark S. Van Anrooy is enrolled with Medicare (CMS data updated 2026-10-02).
- 1045 W Stephenson StFreeport, IL 61032 (815) 599‑6000
- 1235 N Mulford Rd, Suite 222Rockford, IL 61107 (815) 397‑8400
- 1401 E State StRockford, IL 61104 (815) 968‑4400
- 6824 Newburg Rd, Sa ValleyRockford, IL 61108 (779) 696‑7610
Group practices
Medicare enrollment lists Mark S. Van Anrooy as a member of these groups (CMS data updated 2026-10-02).
- Swedishamerican Hospital389 clinicians in the group
- Medical Pain Management Services, Ltd.6 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Freeport
Clinicians with the same Medicare primary specialty in Freeport, IL — not a recommendation.
Clinician information
| Graduation year | 1996 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578541470 |
| 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