Quick answers
- Where does Gary C. Steven see patients?
- Medicare's clinician data lists 2 practice locations, including Mount Pleasant, WI and Greenfield, WI. Call before your visit to confirm the address.
- What is Gary C. Steven's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Gary C. Steven accept Medicare assignment?
- Yes. Medicare's clinician data says Gary C. Steven 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.
- Does Gary C. Steven offer telehealth?
- Medicare's clinician data says Gary C. Steven offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gary C. Steven?
- (414) 529-8500, as listed in official Medicare / NPI Registry data.
- What is Gary C. Steven's NPI number?
- 1972530699. 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 Gary C. Steven is enrolled with Medicare (CMS data updated 2026-10-02).
- 5439 Durand Ave, Suite 202Mount Pleasant, WI 53406 (414) 529‑8500
- 8585 W Forest Home Ave, Suite 200Greenfield, WI 53228 (414) 529‑8500
Group practices
Medicare enrollment lists Gary C. Steven as a member of this group (CMS data updated 2026-10-02).
- Allergy Asthma and Sinus Center SC3 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972530699 |
| 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