Quick answers
- Which hospitals does Marie Louies Lamsen work at?
- Medicare's official clinician data lists Marie Louies Lamsen at 5 hospitals: Danbury Hospital, Griffin Hospital, Northern Westchester Hospital, Norwalk Hospital and White Plains Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marie Louies Lamsen see patients?
- Medicare's clinician data lists 4 practice locations, including New Milford, CT, Danbury, CT and Mount Kisco, NY. Call before your visit to confirm the address.
- What is Marie Louies Lamsen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Marie Louies Lamsen accept Medicare assignment?
- Yes. Medicare's clinician data says Marie Louies Lamsen 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 Marie Louies Lamsen offer telehealth?
- Medicare's clinician data says Marie Louies Lamsen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marie Louies Lamsen?
- (860) 210-5390, as listed in official Medicare / NPI Registry data.
- What is Marie Louies Lamsen's NPI number?
- 1982975710. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marie Louies Lamsen works
Medicare's Facility Affiliation Data lists Marie Louies Lamsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Danbury HospitalDanbury, CT · Acute Care Hospital · CCN 070033
- Griffin HospitalDerby, CT · Acute Care Hospital · CCN 070031
- Northern Westchester HospitalMount Kisco, NY · Acute Care Hospital · CCN 330162
- Norwalk HospitalNorwalk, CT · Acute Care Hospital · CCN 070034
- White Plains Hospital CenterWhite Plains, NY · Acute Care Hospital · CCN 330304
Practice locations
Addresses where Marie Louies Lamsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 21 Elm StNew Milford, CT 06776 (860) 210‑5390
- 24 Hospital AveDanbury, CT 06810 (203) 739‑7118
- 400 E Main StMount Kisco, NY 10549 (914) 666‑1371
- 41 E Post RdWhite Plains, NY 10601 (914) 681‑0600
Group practices
Medicare enrollment lists Marie Louies Lamsen as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Nuvance Health Medical Practice Ct Inc747 clinicians in the group
- East Post Road Medical Services PC429 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New Milford
Clinicians with the same Medicare primary specialty in New Milford, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1982975710 |
| 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