Jamie H. Chao, MD

Medicare activity in 2024

Official CMS public-use data for Jamie H. Chao, 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, onabotulinumtoxina, 1 unit (J0585)4,100 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)102 services
3. Exam with injections of chemical for destruction of bladder using an endoscope (52287)83 services
4. Insertion of temporary bladder tube (51701)75 services
5. Automated urinalysis test (81003)65 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 cholesterol74%
• High blood pressure72%
• Arthritis63%
• Anxiety33%
• Depression30%
• Diabetes27%

Hospitals where Jamie H. Chao works

Medicare's Facility Affiliation Data lists Jamie H. Chao 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 Medical Center - SummitSummit, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520206
• Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520138
• 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 Jamie H. Chao is enrolled with Medicare (CMS data updated October 2, 2026).

• 8905 W Lincoln AveWest Allis, WI 53227 (414) 328‑8480

Group practices

Medicare enrollment lists Jamie H. Chao as a member of this group (CMS data updated October 2, 2026).

• Aurora Medical Group, Inc.3,813 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in Wisconsin →

Other OB-GYNs in West Allis

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

• Jacek M. Kowalski, MD
• Vini C. Konowitz, MD
• Priya Sabharwal, MD
• Alix Komar, MD
• Natalie R. Mironov, DO
• Rashmi Kaul, MD
• Kerry Katz, MD
• Caitlin M. Ferron, MD

All OB-GYNs in West Allis →

Other clinicians in Aurora Medical Group, Inc.

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

• Gregory J. Nelson, MD
• Alissa M. Gesior, PA
• Amanda J. Hiemstra, NP
• Zacharias P. Zitterkopf, MD
• Michal M. Krynicki, MD
• Timothy J. Maher, 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