Quick answers
- Does Katherine J. Mills accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine J. Mills 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.
- How many Medicare patients does Katherine J. Mills see?
- In 2024, CMS data shows 200 Original Medicare patients and 213 services for Katherine J. Mills. This counts Original Medicare only and measures volume, not quality.
- What is Katherine J. Mills's NPI number?
- 1821587916. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Katherine J. Mills, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 200 |
|---|---|
| Services billed to Medicare | 213 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Anesthesia for other procedure on large bowel using an endoscope (00811)50 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)35 services
- Anesthesia for x-ray or radiation therapy (01922)16 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol71%
- High blood pressure69%
- Arthritis46%
- Diabetes28%
- Chronic kidney disease26%
- Ischemic heart disease25%
Hospitals where Katherine J. Mills works
Medicare's Facility Affiliation Data lists Katherine J. Mills 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.
- Borgess Medical CenterKalamazoo, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230117
- Bronson Lakeview HospitalPaw Paw, MI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 231332
- Bronson Methodist HospitalKalamazoo, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230017
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 231339
Practice locations
Addresses where Katherine J. Mills is enrolled with Medicare (CMS data updated October 2, 2026).
- 1009 W Green St, Spectrum Health Pennock HospitalHastings, MI 49058 (269) 945‑3451
- 125 W Walnut St, Bronson Outpatient Surgery CenerKalamazoo, MI 49007 (269) 343‑1381
- 1521 Gull RdKalamazoo, MI 49048 (269) 226‑7000
- 408 Hazen StPaw Paw, MI 49079 (269) 657‑3141
- 900 Peeler StKalamazoo, MI 49008 (269) 345‑8618
Group practices
Medicare enrollment lists Katherine J. Mills as a member of this group (CMS data updated October 2, 2026).
- Kalamazoo Anesthesiology P C135 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Hastings
Clinicians with the same Medicare primary specialty in Hastings, MI — not a recommendation.
Other clinicians in Kalamazoo Anesthesiology P C
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| 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) | 1821587916 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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