Quick answers
- Which hospitals does Leonard B. Nelson work at?
- Medicare's official clinician data lists Leonard B. Nelson at 1 hospital: Wills Eye Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Leonard B. Nelson see patients?
- Medicare's clinician data lists 3 practice locations, including Bala Cynwyd, PA and Philadelphia, PA. Call before your visit to confirm the address.
- What is Leonard B. Nelson's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Leonard B. Nelson accept Medicare assignment?
- Yes. Medicare's clinician data says Leonard B. Nelson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Leonard B. Nelson?
- (484) 434-2700, as listed in official Medicare / NPI Registry data.
- What is Leonard B. Nelson's NPI number?
- 1093789679. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Leonard B. Nelson works
Medicare's Facility Affiliation Data lists Leonard B. Nelson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Wills Eye HospitalPhiladelphia, PA · Acute Care Hospital · CCN 390331
Practice locations
Addresses where Leonard B. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Presidential Blvd, Suite 200Bala Cynwyd, PA 19004 (484) 434‑2700
- 840 Walnut StPhiladelphia, PA 19107 (215) 928‑3041
- 9126 Blue Grass RdPhiladelphia, PA 19114 (215) 552‑8331
Group practices
Medicare enrollment lists Leonard B. Nelson as a member of these groups (CMS data updated 2026-10-02).
- Wills Eye Ophthalmology Clinic, Inc147 clinicians in the group
- Lehigh Valley Eye Center, P.C.50 clinicians in the group
- Ophthalmic Partners PC13 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Bala Cynwyd
Clinicians with the same Medicare primary specialty in Bala Cynwyd, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1976 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093789679 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians