Quick answers
- Does Kaitlyn M. Mahaffy accept Medicare assignment?
- Yes. Medicare's clinician data says Kaitlyn M. Mahaffy 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 Kaitlyn M. Mahaffy's NPI number?
- 1023879657. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kaitlyn M. Mahaffy works
Medicare's Facility Affiliation Data lists Kaitlyn M. Mahaffy 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.
- Lake Huron Medical CenterPort Huron, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230031
- McLaren Port HuronPort Huron, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230216
Practice locations
Addresses where Kaitlyn M. Mahaffy is enrolled with Medicare (CMS data updated October 2, 2026).
- 1210 10th AvePort Huron, MI 48060 (810) 662‑3505
Group practices
Medicare enrollment lists Kaitlyn M. Mahaffy as a member of this group (CMS data updated October 2, 2026).
- Blue Water Internal Medicine PC4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Port Huron
Clinicians with the same Medicare primary specialty in Port Huron, MI — not a recommendation.
Other clinicians in Blue Water Internal Medicine PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | University Of Michigan Medical School |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023879657 |
| 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