Quick answers
- Does Katharine A. Micallef accept Medicare assignment?
- Yes. Medicare's clinician data says Katharine A. Micallef 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 Katharine A. Micallef see?
- In 2024, CMS data shows 27 Original Medicare patients and 60 services for Katharine A. Micallef. This counts Original Medicare only and measures volume, not quality.
- What is Katharine A. Micallef's NPI number?
- 1033524962. 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 Katharine A. Micallef, 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 | 27 |
|---|---|
| Services billed to Medicare | 60 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 66 |
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 cholesterol59%
- Depression41%
- Anxiety41%
Hospitals where Katharine A. Micallef works
Medicare's Facility Affiliation Data lists Katharine A. Micallef 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.
- Chelsea HospitalChelsea, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230259
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230156
Practice locations
Addresses where Katharine A. Micallef is enrolled with Medicare (CMS data updated October 2, 2026).
- 14288 E Old US Hwy 12, Suite 400Chelsea, MI 48118 (734) 572‑9600
Group practices
Medicare enrollment lists Katharine A. Micallef as a member of this group (CMS data updated October 2, 2026).
- Iha Health Services Corporation1,168 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Chelsea
Clinicians with the same Medicare primary specialty in Chelsea, MI — not a recommendation.
Other clinicians in Iha Health Services Corporation
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 | 2014 (12 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033524962 |
| 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