Quick answers
- Does Christy L. Haak accept Medicare assignment?
- Yes. Medicare's clinician data says Christy L. Haak accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Christy L. Haak's NPI number?
- 1558857557. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christy L. Haak works
Medicare's Facility Affiliation Data lists Christy L. Haak at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230230
Practice locations
Addresses where Christy L. Haak is enrolled with Medicare (CMS data updated October 2, 2026).
- 1215 E Michigan AveLansing, MI 48912 (517) 482‑7246
Group practices
Medicare enrollment lists Christy L. Haak as a member of this group (CMS data updated October 2, 2026).
- Anesthesia and Pain Management6 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Lansing
Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.
Other clinicians in Anesthesia and Pain Management
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558857557 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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