Quick answers
- Which hospitals does Katharine Macmillan work at?
- Medicare's official clinician data lists Katharine Macmillan at 2 hospitals: Covenant Medical Center and McLaren Bay Region. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katharine Macmillan see patients?
- Medicare's clinician data lists 1 practice location in Saginaw, MI. Call before your visit to confirm the address.
- What is Katharine Macmillan's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Katharine Macmillan accept Medicare assignment?
- Yes. Medicare's clinician data says Katharine Macmillan 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 Katharine Macmillan?
- (989) 790-3697, as listed in official Medicare / NPI Registry data.
- What is Katharine Macmillan's NPI number?
- 1902426257. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katharine Macmillan works
Medicare's Facility Affiliation Data lists Katharine Macmillan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Covenant Medical CenterSaginaw, MI · Acute Care Hospital · CCN 230070
- McLaren Bay RegionBay City, MI · Acute Care Hospital · CCN 230041
Practice locations
Addresses where Katharine Macmillan is enrolled with Medicare (CMS data updated 2026-10-02).
- 2429 Trautner DrSaginaw, MI 48604 (989) 790‑3697
Group practices
Medicare enrollment lists Katharine Macmillan as a member of this group (CMS data updated 2026-10-02).
- Covenant Medical Center, Inc.480 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Saginaw
Clinicians with the same Medicare primary specialty in Saginaw, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902426257 |
| 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