George R. Mao, MD

Medicare activity in 2024

Official CMS public-use data for George R. Mao, 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. Special stained specimen slides to examine tissue, each additional procedure (88341)871 services
2. Protein measurement, serum (84165)601 services
3. Immunologic analysis technique on serum (immunofixation) (86334)600 services
4. Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)206 services
5. Special stained specimen slides to examine tissue, initial procedure (88342)197 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 cholesterol70%
• Arthritis53%
• Ischemic heart disease36%
• Chronic kidney disease36%
• Diabetes35%

Hospitals where George R. Mao works

Medicare's Facility Affiliation Data lists George R. Mao 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.

• Kettering Health DaytonDayton, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 360133
• Ohio State University State Health SystemColumbus, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360085

Practice locations

Addresses where George R. Mao is enrolled with Medicare (CMS data updated October 2, 2026).

• 410 W 10th AveColumbus, OH 43210 (614) 293‑5905

Group practices

Medicare enrollment lists George R. Mao as a member of this group (CMS data updated October 2, 2026).

• OSU Pathology Services, LLC65 clinicians in the group

Specialties

• Pathologyprimary

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Other pathologists in Columbus

Clinicians with the same Medicare primary specialty in Columbus, OH — not a recommendation.

• Ashwini K. Esnakula, MD
• Sonja D. Chen, MD
• Rana S. Naous, MD
• Nicholas Wongchaowart, MD
• Erin K. Goodhue, DO
• David W. Cohen, MD
• Anita Gupta, MD
• Jay P. Hudgins, DO

All pathologists in Columbus →

Other clinicians in OSU Pathology Services, LLC

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

• Ashwini K. Esnakula, MD
• Rana S. Naous, MD
• Jeffrey R. Kneile, MD
• Erin K. Goodhue, DO
• Gerard Lozanski, MD
• Wegahta T. Weldemichael, 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