Quick answers
- Does William H. Kreisle accept Medicare assignment?
- Yes. Medicare's clinician data says William H. Kreisle 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 William H. Kreisle see?
- In 2024, CMS data shows 150 Original Medicare patients and 604 services for William H. Kreisle. This counts Original Medicare only and measures volume, not quality.
- What is William H. Kreisle's NPI number?
- 1821010455. 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 William H. Kreisle, 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 | 150 |
|---|---|
| Services billed to Medicare | 604 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)165 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)124 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)107 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)43 services
- Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)29 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 pressure65%
- High cholesterol61%
- Arthritis37%
- Chronic kidney disease23%
- Depression22%
- Diabetes20%
Hospitals where William H. Kreisle works
Medicare's Facility Affiliation Data lists William H. Kreisle 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.
- St Luke's McCallMcCall, ID · Critical Access Hospital · Emergency services: listed by Medicare · CCN 131312
- St Luke's Nampa Medical CenterNampa, ID · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 130071
- St Luke's Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 130006
- St Luke's Wood River Medical CenterKetchum, ID · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 131323
- St Lukes Magic Valley Medical CenterTwin Falls, ID · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 130002
Practice locations
Addresses where William H. Kreisle is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 E Bannock StBoise, ID 83712 (208) 381‑2983
- 100 E Idaho St, Suite 200Boise, ID 83712 (208) 381‑2222
- 190 E Bannock StBoise, ID 83712 (208) 381‑9384
- 608 W Hays StBoise, ID 83702 (208) 381‑5970
- 610 W Hays StBoise, ID 83702
Group practices
Medicare enrollment lists William H. Kreisle as a member of this group (CMS data updated October 2, 2026).
- St Lukes Clinic-Treasure Valley LLC1,173 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Hematologyalso
Other hematologist-oncologists in Boise
Clinicians with the same Medicare primary specialty in Boise, ID — not a recommendation.
Other clinicians in St Lukes Clinic-Treasure Valley LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821010455 |
| 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