Quick answers
- Where does John E. Basich see patients?
- Medicare's clinician data lists 4 practice locations, including Oconomowoc, WI, Milwaukee, WI and Brookfield, WI. Call before your visit to confirm the address.
- What is John E. Basich's specialty?
- Medicare lists Allergy/Immunology as the primary specialty, and also Internal Medicine.
- Does John E. Basich accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Basich 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 John E. Basich?
- (262) 569-3080, as listed in official Medicare / NPI Registry data.
- What is John E. Basich's NPI number?
- 1730239393. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John E. Basich is enrolled with Medicare (CMS data updated 2026-10-02).
- 1284 N Summit AveOconomowoc, WI 53066 (262) 569‑3080
- 1575 N Rivercenter DrMilwaukee, WI 53212 (414) 283‑8444
- 16985 W Bluemound RdBrookfield, WI 53005 (262) 641‑8400
- 3003 W Good Hope RdMilwaukee, WI 53209 (414) 352‑3100
Group practices
Medicare enrollment lists John E. Basich as a member of these groups (CMS data updated 2026-10-02).
- Aurora Medical Group, Inc.3,813 clinicians in the group
- Aurora Advanced Healthcare, Inc.1,124 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Internal Medicinealso
Other allergist and immunologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730239393 |
| 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
- 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