Quick answers
- Which hospitals does Marissa A. Clark work at?
- Medicare's official clinician data lists Marissa A. Clark at 1 hospital: Cape Cod Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marissa A. Clark see patients?
- Medicare's clinician data lists 3 practice locations, including Hyannis, MA, Orleans, MA and Osterville, MA. Call before your visit to confirm the address.
- What is Marissa A. Clark's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Marissa A. Clark accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa A. Clark 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 Marissa A. Clark?
- (508) 771-1800, as listed in official Medicare / NPI Registry data.
- What is Marissa A. Clark's NPI number?
- 1205789815. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marissa A. Clark works
Medicare's Facility Affiliation Data lists Marissa A. Clark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cape Cod HospitalHyannis, MA · Acute Care Hospital · CCN 220012
Practice locations
Addresses where Marissa A. Clark is enrolled with Medicare (CMS data updated 2026-10-02).
- 27 Park StHyannis, MA 02601 (508) 771‑1800
- 42 Rt, 6aOrleans, MA 02653 (508) 957‑9270
- 770 Main StOsterville, MA 02655 (508) 957‑9290
Group practices
Medicare enrollment lists Marissa A. Clark as a member of these groups (CMS data updated 2026-10-02).
- Urgi Center Medical Group81 clinicians in the group
- Cape Cod Emergency Associates LLP33 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Hyannis
Clinicians with the same Medicare primary specialty in Hyannis, MA — not a recommendation.
Clinician information
| Graduation year | 2025 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205789815 |
| 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