Mekbib G. Onkiso, MD

Medicare activity in 2024

Official CMS public-use data for Mekbib G. Onkiso, 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. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)111 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)59 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)55 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)46 services
5. Critical care, first 30-74 minutes (99291)33 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%
• Arthritis62%
• Chronic kidney disease51%
• Ischemic heart disease48%
• Anxiety48%

Hospitals where Mekbib G. Onkiso works

Medicare's Facility Affiliation Data lists Mekbib G. Onkiso 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.

• Ascension All Saints HospitalRacine, WI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 520096
• Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520051
• Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520136
• Oconomowoc Memorial HospitalOconomowoc, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520062
• Waukesha Memorial HospitalWaukesha, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520008

Practice locations

Addresses where Mekbib G. Onkiso is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

• 13111 N Port Washington RdMequon, WI 53097 (262) 243‑7300
• 13250 Washington AveMount Pleasant, WI 53177 (262) 884‑4000
• 1414 N Taylor DrSheboygan, WI 53081 (920) 320‑2436
• 2300 Western AveManitowoc, WI 54220 (920) 320‑2011
• 2301 N Lake DrMilwaukee, WI 53211 (414) 585‑1000

Group practices

Medicare enrollment lists Mekbib G. Onkiso as a member of these groups (CMS data updated October 2, 2026).

• Aurora Medical Group, Inc.3,813 clinicians in the group
• Ascension Medical Group-Southeast Wisconsin Inc545 clinicians in the group
• Columbia St Marys Hospital Milwaukee Inc306 clinicians in the group
• Froedtert Manitowoc Medical Group, LLC156 clinicians in the group
• Apogee Medical Group Waukesha SC43 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Wisconsin →

Other internal medicine doctors in Mequon

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

• John R. Zandt, MD
• Daniel Fasihi, MD
• Christopher E. Weber, MD
• Ashwini Gundelly, MD
• Loritz M. Chavez, MD
• David Tennenbaum, MD
• Rupika Uberoi-Nangia, MD
• Richard D. Basile Jr., MD

All internal medicine doctors in Mequon →

Other clinicians in Aurora Medical Group, Inc.

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

• John P. Schmidt, NP
• Ifeyinwa N. Igwe, MD
• Jane Reid, MD
• John A. Scherer, MD
• Mindy Cole, NP
• Raed A. Hamed, 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