David T. Ishiyama, MD

Medicare activity in 2024

Official CMS public-use data for David T. Ishiyama, 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)348 services
2. Electrocardiogram (ecg) 1 to 3 leads with review by physician only (93042)102 services
3. Emergency department visit with moderate level of medical decision making (99284)80 services
4. Critical care, first 30-74 minutes (99291)55 services
5. Hospital discharge day management, more than 30 minutes (99239)38 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 pressure75%
• High cholesterol68%
• Arthritis50%
• Ischemic heart disease44%
• Anxiety42%
• Depression41%

Hospitals where David T. Ishiyama works

Medicare's Facility Affiliation Data lists David T. Ishiyama 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.

• Henry Ford Allegiance HealthJackson, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230092

Practice locations

Addresses where David T. Ishiyama is enrolled with Medicare (CMS data updated October 2, 2026).

• 16001 W 9 Mile RdSouthfield, MI 48075 (248) 849‑3331
• 205 N E AveJackson, MI 49201 (248) 536‑2127
• 205 N E Ave, Allegiance Health HospitalJackson, MI 49201 (517) 788‑4811

Group practices

Medicare enrollment lists David T. Ishiyama as a member of these groups (CMS data updated October 2, 2026).

• Independent Emergency Physicians PC205 clinicians in the group
• Iep Observation Medicine - Jackson PLLC27 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Michigan →

Other emergency medicine doctors in Southfield

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

• Douglas R. Stayer, MD
• James B. Kelly, MD
• Robert B. Takla, MD
• Akshay Bhanot, DO
• Terrence H. Liang, DO
• Claire L. Pearson, MD
• Robert B. Dunne, MD
• David Hall, MD

All emergency medicine doctors in Southfield →

Other clinicians in Independent Emergency Physicians PC

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

• Douglas R. Stayer, MD
• Darby R. Kellogg, PA
• James B. Kelly, MD
• Richard J. Bourjaily, DO
• Adam J. Haezebrouck, DO
• Conrad K. Kovalcik

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