Quick answers
- Which hospitals does James R. Dumerauf work at?
- Medicare's official clinician data lists James R. Dumerauf at 2 hospitals: Holland Hospital and Rush University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James R. Dumerauf see patients?
- Medicare's clinician data lists 3 practice locations, including Chicago, IL and Holland, MI. Call before your visit to confirm the address.
- What is James R. Dumerauf's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does James R. Dumerauf accept Medicare assignment?
- Yes. Medicare's clinician data says James R. Dumerauf 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 James R. Dumerauf?
- (312) 563-6637, as listed in official Medicare / NPI Registry data.
- What is James R. Dumerauf's NPI number?
- 1477693505. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James R. Dumerauf works
Medicare's Facility Affiliation Data lists James R. Dumerauf at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Holland HospitalHolland, MI · Acute Care Hospital · CCN 230072
- Rush University Medical CenterChicago, IL · Acute Care Hospital · CCN 140119
Practice locations
Addresses where James R. Dumerauf is enrolled with Medicare (CMS data updated 2026-10-02).
- 1645 W Jackson Blvd, Suite 600Chicago, IL 60612 (312) 563‑6637
- 602 Michigan AveHolland, MI 49423 (616) 546‑4950
- 854 Washington Ave, 330 Op Behavioral Health ServicesHolland, MI 49423 (616) 355‑3926
Group practices
Medicare enrollment lists James R. Dumerauf as a member of these groups (CMS data updated 2026-10-02).
- Rush University Medical Group1,551 clinicians in the group
- Holland Community Hospital178 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477693505 |
| 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