Quick answers
- Which hospitals does Robert A. Ruben work at?
- Medicare's official clinician data lists Robert A. Ruben at 5 hospitals: Frisbie Memorial Hospital, Huggins Hospital, Portsmouth Regional Hospital, Wentworth-Douglass Hospital and York Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert A. Ruben see patients?
- Medicare's clinician data lists 1 practice location in Somersworth, NH. Call before your visit to confirm the address.
- What is Robert A. Ruben's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Robert A. Ruben accept Medicare assignment?
- Yes. Medicare's clinician data says Robert A. Ruben 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.
- Does Robert A. Ruben offer telehealth?
- Medicare's clinician data says Robert A. Ruben offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Robert A. Ruben?
- (603) 692-2228, as listed in official Medicare / NPI Registry data.
- What is Robert A. Ruben's NPI number?
- 1457354565. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert A. Ruben works
Medicare's Facility Affiliation Data lists Robert A. Ruben at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Frisbie Memorial HospitalRochester, NH · Acute Care Hospital · CCN 300014
- Huggins HospitalWolfeboro, NH · Critical Access Hospital · CCN 301312
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · CCN 300029
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · CCN 300018
- York HospitalYork, ME · Acute Care Hospital · CCN 200020
Practice locations
Addresses where Robert A. Ruben is enrolled with Medicare (CMS data updated 2026-10-02).
- 21 Clark WaySomersworth, NH 03878 (603) 692‑2228
Group practices
Medicare enrollment lists Robert A. Ruben as a member of this group (CMS data updated 2026-10-02).
- Atlantic Digestive Specialists PLLC17 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Somersworth
Clinicians with the same Medicare primary specialty in Somersworth, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Vermont College Of Medicine |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1457354565 |
| 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