Quick answers
- Which hospitals does Nathan A. Aardsma work at?
- Medicare's official clinician data lists Nathan A. Aardsma at 5 hospitals: Franciscan Health Dyer, Franciscan Health Lafayette, Franciscan Health Michigan City, Franciscan Health Munster and Franciscan Health Olympia & Chicago Heights. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nathan A. Aardsma see patients?
- Medicare's clinician data lists 8 practice locations, including Crown Point, IN, Lafayette, IN and Olympia Fields, IL. Call before your visit to confirm the address.
- What is Nathan A. Aardsma's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Nathan A. Aardsma accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan A. Aardsma 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 Nathan A. Aardsma?
- (219) 738-2100, as listed in official Medicare / NPI Registry data.
- What is Nathan A. Aardsma's NPI number?
- 1649579939. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nathan A. Aardsma works
Medicare's Facility Affiliation Data lists Nathan A. Aardsma at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Franciscan Health DyerDyer, IN · Acute Care Hospital · CCN 150090
- Franciscan Health LafayetteLafayette, IN · Acute Care Hospital · CCN 150109
- Franciscan Health Michigan CityMichigan City, IN · Acute Care Hospital · CCN 150015
- Franciscan Health MunsterMunster, IN · Acute Care Hospital · CCN 150165
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · CCN 140172
Practice locations
Addresses where Nathan A. Aardsma is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 12750 Saint Francis DrCrown Point, IN 46307 (219) 738‑2100
- 1701 S Creasy LaneLafayette, IN 47905 (219) 879‑3586
- 20201 Crawford AveOlympia Fields, IL 60461 (708) 747‑4900
- 2434 Interstate Plaza DrHammond, IN 46324 (219) 989‑3700
- 3500 Franciscan WayMichigan City, IN 46360 (219) 879‑8511
Group practices
Medicare enrollment lists Nathan A. Aardsma as a member of these groups (CMS data updated 2026-10-02).
- Pathology Consultants Inc20 clinicians in the group
- Consultants in Pathology SC6 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Crown Point
Clinicians with the same Medicare primary specialty in Crown Point, IN — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649579939 |
| 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