Richard C. Lennertz Jr., MD

Medicare activity in 2024

Official CMS public-use data for Richard C. Lennertz Jr., 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. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)267 services
2. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level (64484)146 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)68 services
4. Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)49 services
5. Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)48 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%
• Arthritis75%
• High cholesterol74%
• Ischemic heart disease36%
• Anxiety34%
• Chronic kidney disease34%

Hospitals where Richard C. Lennertz Jr. works

Medicare's Facility Affiliation Data lists Richard C. Lennertz Jr. 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.

• Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520138
• Froedtert Memorial Lutheran HospitalMilwaukee, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520177
• West Allis Memorial HospitalWest Allis, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520139

Practice locations

Addresses where Richard C. Lennertz Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 8901 W Lincoln AveWest Allis, WI 53227 (414) 328‑6000

Specialties

• Anesthesiologyprimary
• Interventional Pain Managementalso

Find other Anesthesiology doctors in Wisconsin →

Other anesthesiologists in West Allis

Clinicians with the same Medicare primary specialty in West Allis, WI — not a recommendation.

• Nathan P. Gabler, MD
• Mark J. Schaefer, MD
• Bret J. Borowski, MD
• Catherine I. Kuo, MD
• Jin K. Lee, MD
• Daniel M. Smullen, MD
• Abel Chinos, MD
• Robert J. Olson, MD

All anesthesiologists in West Allis →

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