Quick answers
- Does Karen C. Ladnier accept Medicare assignment?
- Yes. Medicare's clinician data says Karen C. Ladnier 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.
- How many Medicare patients does Karen C. Ladnier see?
- In 2024, CMS data shows 172 Original Medicare patients and 267 services for Karen C. Ladnier. This counts Original Medicare only and measures volume, not quality.
- What is Karen C. Ladnier's NPI number?
- 1750888129. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Karen C. Ladnier, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 172 |
|---|---|
| Services billed to Medicare | 267 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)81 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)62 services
- Emergency department visit with moderate level of medical decision making (99284)38 services
- Insertion of non-tunneled central venous tube for infusion (5 years or older) (36556)18 services
- Emergent insertion of breathing tube into windpipe using an endoscope (31500)14 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Ischemic heart disease58%
- Diabetes51%
- Anxiety51%
Hospitals where Karen C. Ladnier works
Medicare's Facility Affiliation Data lists Karen C. Ladnier 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.
- Forrest General HospitalHattiesburg, MS · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 250078
- Wayne General HospitalWaynesboro, MS · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 250077
Practice locations
Addresses where Karen C. Ladnier is enrolled with Medicare (CMS data updated October 2, 2026).
- 6051 U S Hwy 49Hattiesburg, MS 39401 (601) 288‑7000
- 950 Matthew DrWaynesboro, MS 39367 (601) 735‑5151
Group practices
Medicare enrollment lists Karen C. Ladnier as a member of these groups (CMS data updated October 2, 2026).
- Relias Emergency Medicine Specialists of Hattiesburg LLC48 clinicians in the group
- Wayne General Hospital47 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Hattiesburg
Clinicians with the same Medicare primary specialty in Hattiesburg, MS — not a recommendation.
Other clinicians in Relias Emergency Medicine Specialists of Hattiesburg LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750888129 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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