Quick answers
- Does Mary A. Lake accept Medicare assignment?
- Yes. Medicare's clinician data says Mary A. Lake 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 Mary A. Lake's NPI number?
- 1578671871. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary A. Lake works
Medicare's Facility Affiliation Data lists Mary A. Lake at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Houlton Regional HospitalHoulton, ME · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 201308
Practice locations
Addresses where Mary A. Lake is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 Houlton RdDanforth, ME 04424 (207) 448‑2347
Group practices
Medicare enrollment lists Mary A. Lake as a member of this group (CMS data updated October 2, 2026).
- East Grand Health Center Inc7 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Maine
Clinicians with the same Medicare primary specialty in Maine — not a recommendation.
Other clinicians in East Grand Health Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2000 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578671871 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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