Quick answers
- Where does Jacob S. Duker see patients?
- Medicare's clinician data lists 3 practice locations, including Providence, RI and Warwick, RI. Call before your visit to confirm the address.
- What is Jacob S. Duker's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Jacob S. Duker accept Medicare assignment?
- Yes. Medicare's clinician data says Jacob S. Duker 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 Jacob S. Duker?
- (401) 444-6551, as listed in official Medicare / NPI Registry data.
- What is Jacob S. Duker's NPI number?
- 1467807222. 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 Jacob S. Duker is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Hoppin St, Suite 202Providence, RI 02903 (401) 444‑6551
- 120 Dudley St, Suite 303Providence, RI 02905 (401) 369‑7773
- 55 Lambert Lind HwyWarwick, RI 02886 (401) 369‑7773
Group practices
Medicare enrollment lists Jacob S. Duker as a member of these groups (CMS data updated 2026-10-02).
- Lifespan Physician Group Inc1,173 clinicians in the group
- Robert H. Janigian Jr. MD LLC5 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Providence
Clinicians with the same Medicare primary specialty in Providence, RI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467807222 |
| 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