Quick answers
- Which hospitals does Ann S. Bunyan work at?
- Medicare's official clinician data lists Ann S. Bunyan at 2 hospitals: Rush Oak Park Hospital and Rush University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ann S. Bunyan see patients?
- Medicare's clinician data lists 2 practice locations, including Oak Park, IL. Call before your visit to confirm the address.
- What is Ann S. Bunyan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ann S. Bunyan accept Medicare assignment?
- Yes. Medicare's clinician data says Ann S. Bunyan 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 Ann S. Bunyan?
- (708) 660-2240, as listed in official Medicare / NPI Registry data.
- What is Ann S. Bunyan's NPI number?
- 1174935274. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ann S. Bunyan works
Medicare's Facility Affiliation Data lists Ann S. Bunyan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Rush Oak Park HospitalOak Park, IL · Acute Care Hospital · CCN 140063
- Rush University Medical CenterChicago, IL · Acute Care Hospital · CCN 140119
Practice locations
Addresses where Ann S. Bunyan is enrolled with Medicare (CMS data updated 2026-10-02).
- 520 S Maple AveOak Park, IL 60304 (708) 660‑2240
- 610 S Maple Ave, Suite 4600Oak Park, IL 60304 (708) 660‑2240
Group practices
Medicare enrollment lists Ann S. Bunyan as a member of these groups (CMS data updated 2026-10-02).
- Rush University Medical Group1,551 clinicians in the group
- Rush Oak Park Physicians Group Adult Medicine17 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Oak Park
Clinicians with the same Medicare primary specialty in Oak Park, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174935274 |
| 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