Quick answers
- Where does Gregory A. Caldwell see patients?
- Medicare's clinician data lists 1 practice location in Duncansville, PA. Call before your visit to confirm the address.
- What is Gregory A. Caldwell's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Gregory A. Caldwell accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory A. Caldwell 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 Gregory A. Caldwell?
- (814) 695-3141, as listed in official Medicare / NPI Registry data.
- What is Gregory A. Caldwell's NPI number?
- 1205827912. 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 Gregory A. Caldwell is enrolled with Medicare (CMS data updated 2026-10-02).
- 108 Olde Farm Office RdDuncansville, PA 16635 (814) 695‑3141
Group practices
Medicare enrollment lists Gregory A. Caldwell as a member of this group (CMS data updated 2026-10-02).
- Ryan D Imler Od PC6 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Duncansville
Clinicians with the same Medicare primary specialty in Duncansville, PA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Medical school | Pennsylvania College Of Optometry |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205827912 |
| 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 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