Quick answers
- Does Mariel Bitter accept Medicare assignment?
- Yes. Medicare's clinician data says Mariel Bitter accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Mariel Bitter's NPI number?
- 1568106185. 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 Mariel Bitter is enrolled with Medicare (CMS data updated October 2, 2026).
- 259 A N St, Suite 1 and 2nd FloorHyannis, MA 02601 (508) 862‑0514
- 310 Barnstable Rd, Suite 201Hyannis, MA 02601 (508) 862‑0514
- 33 Boston Post Rd W, Suite 420Marlborough, MA 01752 (508) 475‑9711
- 5 Namskaket RdOrleans, MA 02653 (774) 332‑3791
Group practices
Medicare enrollment lists Mariel Bitter as a member of this group (CMS data updated October 2, 2026).
- Northeast Health Services LLC479 clinicians in the group
Specialties
- Clinical Social Workerprimary
Find other clinicians: Clinical Social Worker, Massachusetts →
Other clinical social workers in Hyannis
Clinicians with the same Medicare primary specialty in Hyannis, MA — not a recommendation.
Other clinicians in Northeast Health Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568106185 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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