Quick answers
- Does Claudia Tellier accept Medicare assignment?
- Yes. Medicare's clinician data says Claudia Tellier 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 Claudia Tellier see?
- In 2024, CMS data shows 464 Original Medicare patients and 1,095 services for Claudia Tellier. This counts Original Medicare only and measures volume, not quality.
- What is Claudia Tellier's NPI number?
- 1336879360. 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 Claudia Tellier, 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 | 464 |
|---|---|
| Services billed to Medicare | 1,095 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)214 services
- Ultrasound of heart with probe in esophagus, with report (93312)76 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)70 services
- Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)63 services
- Ultrasound of heart, follow-up (93308)46 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 cholesterol69%
- Arthritis48%
- Ischemic heart disease48%
- Atrial fibrillation46%
- Heart failure44%
Hospitals where Claudia Tellier works
Medicare's Facility Affiliation Data lists Claudia Tellier 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.
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 270012
- Great Falls Clinic HospitalGreat Falls, MT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 270086
- Holy Rosary HospitalMiles City, MT · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 271347
- Intermountain Health St Vincent Regional HospitalBillings, MT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 270049
Practice locations
Addresses where Claudia Tellier is enrolled with Medicare (CMS data updated October 2, 2026).
- 1301 11th Ave SGreat Falls, MT 59405 (406) 761‑2222
- 1509 29th St SGreat Falls, MT 59405 (406) 771‑3500
- 2900 12th Ave N, Suite 204eBillings, MT 59101 (406) 237‑5001
- 3000 15th Ave SGreat Falls, MT 59405 (406) 454‑2171
- 3010 15th Ave SGreat Falls, MT 59405 (406) 216‑8000
Group practices
Medicare enrollment lists Claudia Tellier as a member of these groups (CMS data updated October 2, 2026).
- SCL Health Medical Group - Billings LLC297 clinicians in the group
- CMSC LLC91 clinicians in the group
- Great Falls Clinic LLC72 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Montana →
Other cardiologists in Great Falls
Clinicians with the same Medicare primary specialty in Great Falls, MT — not a recommendation.
Other clinicians in SCL Health Medical Group - Billings LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Laval Universite, Faculte De Medecine |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336879360 |
| 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