Quick answers
- Where does Mark A. Tomczak see patients?
- Medicare's clinician data lists 2 practice locations, including Mokena, IL and Munster, IN. Call before your visit to confirm the address.
- What is Mark A. Tomczak's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Mark A. Tomczak accept Medicare assignment?
- Yes. Medicare's clinician data says Mark A. Tomczak 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 Mark A. Tomczak?
- (708) 478-8889, as listed in official Medicare / NPI Registry data.
- What is Mark A. Tomczak's NPI number?
- 1235188533. 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 Mark A. Tomczak is enrolled with Medicare (CMS data updated 2026-10-02).
- 19110 Darvin Dr, Suite AMokena, IL 60448 (708) 478‑8889
- 9200 Calumet Ave, Suite 200Munster, IN 46321 (219) 961‑9621
Group practices
Medicare enrollment lists Mark A. Tomczak as a member of this group (CMS data updated 2026-10-02).
- Elite Anesthesia Providers Ltd25 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Illinois →
Other nurse anesthetists in Mokena
Clinicians with the same Medicare primary specialty in Mokena, IL — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235188533 |
| 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