Kathleen W. Montgomery, MD

Medicare activity in 2024

Official CMS public-use data for Kathleen W. Montgomery, 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.

Most frequent services

1. Pathology examination of tissue using a microscope, intermediate complexity (88305)314 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)112 services
3. Special stained specimen slides to examine tissue, initial procedure (88342)105 services
4. Pathology examination of tissue using a microscope, moderately high complexity (88307)86 services
5. Pathology examination of specimen during surgery, first tissue block (88331)34 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 blood pressure72%
• High cholesterol70%
• Arthritis42%
• Diabetes31%
• Anxiety31%
• Depression30%

Hospitals where Kathleen W. Montgomery works

Medicare's Facility Affiliation Data lists Kathleen W. Montgomery 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.

• Mercy Health Saint Mary'sGrand Rapids, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230059

Practice locations

Addresses where Kathleen W. Montgomery is enrolled with Medicare (CMS data updated October 2, 2026).

• 200 Jefferson Ave SEGrand Rapids, MI 49503 (616) 685‑6258
• 5900 Byron Ctr Ave SWWyoming, MI 49519 (616) 252‑7166

Group practices

Medicare enrollment lists Kathleen W. Montgomery as a member of this group (CMS data updated October 2, 2026).

• Pathology Associates of Grand Rapids PC9 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Michigan →

Other pathologists in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

• Chelsea Styles, MD
• Yelena Wilson, DO
• Britni R. Bryant, MD
• Jesse Kinner, DO
• Jane C. Morrison, MD
• Timothy Helland, MD
• Amir Lagstein, MD
• James Liu, MD

All pathologists in Grand Rapids →

Other clinicians in Pathology Associates of Grand Rapids PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• David M. Graham, MD
• Kay L. Aardema, MD
• Michael C. Naski, MD
• Timothy J. Pelkey, MD
• Sarat Khandavalli, MD
• Brandon D. Ellsworth, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians