Quick answers
- Does Zachary R. Merlo accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary R. Merlo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Zachary R. Merlo's NPI number?
- 1295624302. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Zachary R. Merlo is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 112 Sipe AveHummelstown, PA 17036 (717) 761‑5530
- 112 Sipe Ave, Fl 3Hummelstown, PA 17036 (717) 483‑2311
- 250 Alexander Spring RdCarlisle, PA 17015 (717) 761‑5530
- 250 Alexander Spring Rd, Fl 2Carlisle, PA 17015 (717) 920‑2620
- 3399 Trindle RdCamp Hill, PA 17011
Group practices
Medicare enrollment lists Zachary R. Merlo as a member of this group (CMS data updated October 2, 2026).
- Orthopedic Surgeons Ltd90 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Hummelstown
Clinicians with the same Medicare primary specialty in Hummelstown, PA — not a recommendation.
Other clinicians in Orthopedic Surgeons Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295624302 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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