Quick answers
- Does Mary K. Christiansen accept Medicare assignment?
- Yes. Medicare's clinician data says Mary K. Christiansen 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 K. Christiansen's NPI number?
- 1578208997. 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 K. Christiansen works
Medicare's Facility Affiliation Data lists Mary K. Christiansen 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.
- Shands JacksonvilleJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100001
Practice locations
Addresses where Mary K. Christiansen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1255 Lila StJacksonville, FL 32208
- 653 W 8th StJacksonville, FL 32209
- 655 W 8th StJacksonville, FL 32209
Group practices
Medicare enrollment lists Mary K. Christiansen as a member of this group (CMS data updated October 2, 2026).
- University of Florida Jacksonville Physicians, Inc.910 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Other clinicians in University of Florida Jacksonville Physicians, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Carolina At Chapel Hill School Of Medicine |
| Graduation year | 2022 (4 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1578208997 |
| 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