Drew R. Chronister, MD

Medicare activity in 2024

Official CMS public-use data for Drew R. Chronister, 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. Established patient complete exam of visual system (92014)847 services
2. Established patient problem focused exam of visual system (92012)503 services
3. Measurement of corneal curvature and depth of eye (92136)422 services
4. Removal of cataract with insertion of prosthetic lens (66984)331 services
5. Photography of the retina (92250)320 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 cholesterol75%
• High blood pressure73%
• Arthritis45%
• Diabetes33%
• Ischemic heart disease31%
• Chronic kidney disease26%

Hospitals where Drew R. Chronister works

Medicare's Facility Affiliation Data lists Drew R. Chronister 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.

• Wills Eye HospitalPhiladelphia, PA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 390331

Practice locations

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

• 2110 Harrisburg Pike, Suite 215Lancaster, PA 17601 (717) 299‑9232
• 3000 C G Zinn RdThorndale, PA 19372 (610) 384‑9100
• 840 Walnut StPhiladelphia, PA 19107 (215) 928‑3041

Group practices

Medicare enrollment lists Drew R. Chronister as a member of these groups (CMS data updated October 2, 2026).

• Wills Eye Ophthalmology Clinic, Inc147 clinicians in the group
• Focus Eye Group PC7 clinicians in the group
• Family Eye Group PC4 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Pennsylvania →

Other ophthalmologists in Lancaster

Clinicians with the same Medicare primary specialty in Lancaster, PA — not a recommendation.

• Pierre K. Palandjian, DO
• Kristina Pao, MD
• Dina Y. Gewaily, MD
• Bethany M. Rommel, MD
• Steven J. Donnelly, MD
• Wenxin Wei, MD
• Thomas H. Tien, MD
• Shelley X. Mo, MD

All ophthalmologists in Lancaster →

Other clinicians in Wills Eye Ophthalmology Clinic, Inc

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

• Raymond T. Pekala, MD
• Dilru C. Amarasekera, MD
• Justin Muste, MD
• Christopher A. Williams, MD
• Janine G. Tabas, MD
• Barry N. Wasserman, 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