David W. Whalen, MD

Medicare activity in 2024

Official CMS public-use data for David W. Whalen, 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. Emergency department visit with high level of medical decision making (99285)91 services
2. Emergency department visit with moderate level of medical decision making (99284)67 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)43 services
4. Emergency department visit with low level of medical decision making (99283)25 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 pressure74%
• High cholesterol65%
• Arthritis49%
• Depression48%
• Anxiety48%
• Chronic kidney disease37%

Hospitals where David W. Whalen works

Medicare's Facility Affiliation Data lists David W. Whalen 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 David W. Whalen is enrolled with Medicare (CMS data updated October 2, 2026).

• 200 Jefferson Ave SE, Mercy Health St. Mary'SGrand Rapids, MI 49503 (616) 685‑5000

Group practices

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

• Grand River Emergency Medical Group PLC39 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Michigan →

Other emergency medicine doctors in Grand Rapids

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

• Jeremy Zarski, DO
• Gary R. Mikula, DO
• Alexandra Barshied, MD
• Steffen D. Genthe, MD
• April A. Hodnicak, DO
• Eric A. Brown, MD
• Diana B. Nordlund, DO
• Wade J. Thompson, MD

All emergency medicine doctors in Grand Rapids →

Other clinicians in Grand River Emergency Medical Group PLC

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

• Lukas S. Gladstone, DO
• Corey B. Schaedig, PA
• Virginia Stoll-Tyrrell, DO
• Adam M. Anderson, MD
• Nicholas J. Rademacher, MD
• Robert E. McDaniels, DO

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