Quick answers
- Which hospitals does Holli Marquart work at?
- Medicare's official clinician data lists Holli Marquart at 2 hospitals: Essentia Health and Jamestown Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Holli Marquart see patients?
- Medicare's clinician data lists 2 practice locations, including Jamestown, ND. Call before your visit to confirm the address.
- What is Holli Marquart's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Holli Marquart accept Medicare assignment?
- Yes. Medicare's clinician data says Holli Marquart 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 Holli Marquart?
- (701) 252-1050, as listed in official Medicare / NPI Registry data.
- What is Holli Marquart's NPI number?
- 1457872640. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Holli Marquart works
Medicare's Facility Affiliation Data lists Holli Marquart at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Essentia HealthFargo, ND · Acute Care Hospital · CCN 350070
- Jamestown Regional Medical CenterJamestown, ND · Critical Access Hospital · CCN 351335
Practice locations
Addresses where Holli Marquart is enrolled with Medicare (CMS data updated 2026-10-02).
- 2422 20th St SWJamestown, ND 58401 (701) 252‑1050
- 2430 20th St SWJamestown, ND 58401 (701) 253‑5300
Group practices
Medicare enrollment lists Holli Marquart as a member of these groups (CMS data updated 2026-10-02).
- Innovis Health LLC559 clinicians in the group
- Lutheran Charity Association175 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Jamestown
Clinicians with the same Medicare primary specialty in Jamestown, ND — not a recommendation.
Clinician information
| Medical school | University Of North Dakota School Of Medicine |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457872640 |
| 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