Quick answers
- Which hospitals does Marsha C. Kavanagh work at?
- Medicare's official clinician data lists Marsha C. Kavanagh at 1 hospital: Wentworth-Douglass Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marsha C. Kavanagh see patients?
- Medicare's clinician data lists 2 practice locations, including Portsmouth, NH and Somersworth, NH. Call before your visit to confirm the address.
- What is Marsha C. Kavanagh's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Marsha C. Kavanagh accept Medicare assignment?
- Yes. Medicare's clinician data says Marsha C. Kavanagh 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 Marsha C. Kavanagh?
- (603) 436-1773, as listed in official Medicare / NPI Registry data.
- What is Marsha C. Kavanagh's NPI number?
- 1467403659. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marsha C. Kavanagh works
Medicare's Facility Affiliation Data lists Marsha C. Kavanagh at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · CCN 300018
Practice locations
Addresses where Marsha C. Kavanagh is enrolled with Medicare (CMS data updated 2026-10-02).
- 155 Borthwick Ave, Suite 200ePortsmouth, NH 03801 (603) 436‑1773
- 267 Route 108Somersworth, NH 03878 (603) 692‑7500
Group practices
Medicare enrollment lists Marsha C. Kavanagh as a member of this group (CMS data updated 2026-10-02).
- Eyesight Ophthalmic Services PLLC16 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Portsmouth
Clinicians with the same Medicare primary specialty in Portsmouth, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467403659 |
| 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