Harold G. Ota, MD

Medicare activity in 2024

Official CMS public-use data for Harold G. Ota, 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. Removal of impacted ear wax (69210)260 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)241 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)101 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)40 services
5. Diagnostic exam of voice box using a flexible endoscope (31575)39 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 pressure73%
• High cholesterol72%
• Arthritis49%
• Anxiety32%
• Chronic kidney disease30%
• Ischemic heart disease28%

Hospitals where Harold G. Ota works

Medicare's Facility Affiliation Data lists Harold G. Ota 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.

• Massachusetts Eye and Ear Infirmary -Boston, MA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 220075

Practice locations

Addresses where Harold G. Ota is enrolled with Medicare (CMS data updated October 2, 2026).

• 243 Charles StBoston, MA 02114 (617) 523‑7900

Group practices

Medicare enrollment lists Harold G. Ota as a member of this group (CMS data updated October 2, 2026).

• Massachusetts Eye and Ear Associates, Inc433 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in Massachusetts →

Other ENT doctors in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

• Arnold S. Lee, MD
• Carleton Corrales, MD
• Duane B. Welling, MD
• Paul M. Konowitz, MD
• Justine G. Philteos, MD
• Steven M. Zeitels, MD
• Eric Holbrook, MD
• Ryan Bartholomew, MD

All ENT doctors in Boston →

Other clinicians in Massachusetts Eye and Ear Associates, Inc

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

• Tamsyn Withers, MD
• Valerie G. Tainsh, MD
• Hong Duyen T. Phan, CNA
• Lucy Shen
• Lydia Laser, CNA
• Adrian J. Priesol, 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