Quick answers
- Does Harold G. Clausen accept Medicare assignment?
- Yes. Medicare's clinician data says Harold G. Clausen 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 Harold G. Clausen see?
- In 2024, CMS data shows 720 Original Medicare patients and 3,225 services for Harold G. Clausen. This counts Original Medicare only and measures volume, not quality.
- What is Harold G. Clausen's NPI number?
- 1417958240. 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 Harold G. Clausen, 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 | 720 |
|---|---|
| Services billed to Medicare | 3,225 |
| Different services or procedures | 64 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)905 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)701 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)220 services
- Injection, regadenoson, 0.1 mg (J2785)208 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)184 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%
- Arthritis52%
- Ischemic heart disease42%
- Diabetes41%
- Chronic kidney disease36%
Hospitals where Harold G. Clausen works
Medicare's Facility Affiliation Data lists Harold G. Clausen 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.
- Baton Rouge General Medical CenterBaton Rouge, LA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 190065
- Field Health SystemCentreville, MS · Critical Access Hospital · Emergency services: listed by Medicare · CCN 251309
- Fmol Health | Our Lady of the LakeBaton Rouge, LA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 190064
- Prevost Memorial HospitalDonaldsonville, LA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 191308
- Surgical Specialty Center of Baton RougeBaton Rouge, LA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 190251
Practice locations
Addresses where Harold G. Clausen is enrolled with Medicare (CMS data updated October 2, 2026).
- 178 Hwy 24 ECentreville, MS 39631 (601) 890‑0500
- 5231 Brittany DrBaton Rouge, LA 70808 (225) 769‑0933
- 7777 Hennessy Blvd, Suite 215Baton Rouge, LA 70808 (225) 767‑9878
Group practices
Medicare enrollment lists Harold G. Clausen as a member of these groups (CMS data updated October 2, 2026).
- Field Memorial Community Hospital41 clinicians in the group
- Baton Rouge Cardiology Center28 clinicians in the group
- Cardiovascular Specialty Care Center of Baton Rouge LLC16 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Mississippi →
Other cardiologists in Mississippi
Clinicians with the same Medicare primary specialty in Mississippi — not a recommendation.
Other clinicians in Field Memorial Community Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In Shreveport |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417958240 |
| 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