Glenn R. Oppenlander, MD

Medicare activity in 2024

Official CMS public-use data for Glenn R. Oppenlander, 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. Anesthesia for other procedure on large bowel using an endoscope (00811)19 services
2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)15 services
3. Anesthesia for procedure for total knee joint replacement (01402)13 services
4. Anesthesia for other procedure on lower leg, ankle, and foot bones (01480)13 services
5. Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)13 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 cholesterol75%
• Arthritis66%
• Diabetes47%
• Ischemic heart disease41%
• Chronic kidney disease36%

Hospitals where Glenn R. Oppenlander works

Medicare's Facility Affiliation Data lists Glenn R. Oppenlander 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.

• Beaumont Hospital - DearbornDearborn, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230020
• Beaumont Hospital - TaylorTaylor, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230270
• Corewell Health Trenton HospitalTrenton, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230176
• Corewell Health Wayne HospitalWayne, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230142
• 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 Glenn R. Oppenlander is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 13; the Medicare profile lists all.

• 100 Michigan Ave NEGrand Rapids, MI 49503
• 100 Michigan St NE Rm, 280 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 267‑0115
• 10000 Telegraph RdTaylor, MI 48180 (214) 687‑0001
• 18101 Oakwood BlvdDearborn, MI 48124 (214) 687‑0001
• 2006 Hogback RdAnn Arbor, MI 48105

Group practices

Medicare enrollment lists Glenn R. Oppenlander as a member of these groups (CMS data updated October 2, 2026).

• Spectrum Health Primary Care Partners2,294 clinicians in the group
• Northstar Anesthesia of Michigan III PLLC561 clinicians in the group
• Anesthesia Associates of Ann Arbor PLLC219 clinicians in the group
• Huron Gastroenterology Associates PC99 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Michigan →

Other anesthesiologists in Grand Rapids

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

• Richard Kelly, MD
• Shanna Tenclay, MD
• Adaora M. Chima, MD
• Chinwe A. Dryer, MD
• Dalmar Mohamod, DO
• Henry Barcino, MD
• Yijia Chu
• Bronson Crawford, MD

All anesthesiologists in Grand Rapids →

Other clinicians in Spectrum Health Primary Care Partners

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

• Bachar Salem Hazim, MD
• Julieta Osella, MD
• Sarah Darnell, NP
• Nicole Shellenbarger, PA
• Maximiliano A. Tamae Kakazu, MD
• Kara L. Keeling, NP

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