Quick answers
- Does Adam D. Nieuwkoop accept Medicare assignment?
- Yes. Medicare's clinician data says Adam D. Nieuwkoop 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 Adam D. Nieuwkoop's NPI number?
- 1609226638. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Adam D. Nieuwkoop works
Medicare's Facility Affiliation Data lists Adam D. Nieuwkoop 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.
- Beacon DowagiacDowagiac, MI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 231315
Practice locations
Addresses where Adam D. Nieuwkoop is enrolled with Medicare (CMS data updated October 2, 2026).
- 420 W High St, Lee Memorial Hospital CorporationDowagiac, MI 49047 (269) 782‑8681
Group practices
Medicare enrollment lists Adam D. Nieuwkoop as a member of this group (CMS data updated October 2, 2026).
- Ascension Borgess Lee Hospital27 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Michigan →
Other nurse anesthetists in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Other clinicians in Ascension Borgess Lee Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609226638 |
| 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