Quick answers
- Which hospitals does John Mrachek work at?
- Medicare's official clinician data lists John Mrachek at 2 hospitals: Maple Grove Hospital and North Memorial Health Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Mrachek see patients?
- Medicare's clinician data lists 1 practice location in Maple Grove, MN. Call before your visit to confirm the address.
- What is John Mrachek's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does John Mrachek accept Medicare assignment?
- Yes. Medicare's clinician data says John Mrachek 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 Mrachek?
- (763) 898-1000, as listed in official Medicare / NPI Registry data.
- What is John Mrachek's NPI number?
- 1265445498. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Mrachek works
Medicare's Facility Affiliation Data lists John Mrachek at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Maple Grove HospitalMaple Grove, MN · Acute Care Hospital · CCN 240214
- North Memorial Health HospitalRobbinsdale, MN · Acute Care Hospital · CCN 240001
Practice locations
Addresses where John Mrachek is enrolled with Medicare (CMS data updated 2026-10-02).
- 9875 Hospital DrMaple Grove, MN 55369 (763) 898‑1000
Group practices
Medicare enrollment lists John Mrachek as a member of this group (CMS data updated 2026-10-02).
- Anesthesiology, P.A.136 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Maple Grove
Clinicians with the same Medicare primary specialty in Maple Grove, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265445498 |
| 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