Quick answers
- Does Leana Guerin accept Medicare assignment?
- Yes. Medicare's clinician data says Leana Guerin 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 Leana Guerin see?
- In 2024, CMS data shows 712 Original Medicare patients and 1,796 services for Leana Guerin. This counts Original Medicare only and measures volume, not quality.
- What is Leana Guerin's NPI number?
- 1750591483. 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 Leana Guerin, 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 | 712 |
|---|---|
| Services billed to Medicare | 1,796 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)570 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)196 services
- Protein measurement, serum (84165)166 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)152 services
- Special stained specimen slides to examine tissue, initial procedure (88342)97 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 cholesterol68%
- Arthritis44%
- Chronic kidney disease32%
- Diabetes30%
- Ischemic heart disease27%
Hospitals where Leana Guerin works
Medicare's Facility Affiliation Data lists Leana Guerin 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.
- Saint Alphonsus Medical Center - NampaNampa, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130013
- Saint Alphonsus Medical Center OntarioOntario, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380052
- Saint Alphonsus Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130007
- St Luke's Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 130006
- St. Alphonsus Medical Center - Baker CityBaker City, OR · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 381315
Practice locations
Addresses where Leana Guerin is enrolled with Medicare (CMS data updated October 2, 2026).
- 1055 N Curtis RdBoise, ID 83706 (208) 367‑2121
Group practices
Medicare enrollment lists Leana Guerin as a member of this group (CMS data updated October 2, 2026).
- Saint Alphonsus Regional Medical Center Inc680 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Boise
Clinicians with the same Medicare primary specialty in Boise, ID — not a recommendation.
Other clinicians in Saint Alphonsus Regional Medical Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750591483 |
| 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