Courtney Ondeck, MD

Medicare activity in 2024

Official CMS public-use data for Courtney Ondeck, 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. Exam of visual field with extended testing (92083)182 services
2. Imaging of optic nerve (92133)179 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)146 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)109 services
5. Established patient complete exam of visual system (92014)100 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 pressure66%
• Arthritis39%
• Diabetes32%
• Anxiety29%
• Chronic kidney disease26%

Hospitals where Courtney Ondeck works

Medicare's Facility Affiliation Data lists Courtney Ondeck 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
• Massachusetts General HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220071

Practice locations

Addresses where Courtney Ondeck is enrolled with Medicare (CMS data updated October 2, 2026).

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

Group practices

Medicare enrollment lists Courtney Ondeck as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Massachusetts →

Other ophthalmologists in Boston

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

• Thomas Dohlman, MD
• Daniel M. Vu, MD
• Joseph Ciolino
• Angela V. Turalba, MD
• Sabera T. Shah, MD
• Kathyrn Masselam Hatch, MD
• Suleman I. Khan, MD
• Richmond L. Woodward, MD

All ophthalmologists in Boston →

Other clinicians in Massachusetts Eye and Ear Associates, Inc

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

• Thomas Dohlman, MD
• Daniel M. Vu, MD
• Artem Grush, MD
• David S. Friedman, MD
• Stephanie Sullo, AU
• Hong Duyen T. Phan, CNA

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