Quick answers
- Does Dianna L. Guenther accept Medicare assignment?
- Yes. Medicare's clinician data says Dianna L. Guenther 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 Dianna L. Guenther see?
- In 2024, CMS data shows 16 Original Medicare patients and 48 services for Dianna L. Guenther. This counts Original Medicare only and measures volume, not quality.
- What is Dianna L. Guenther's NPI number?
- 1902081417. 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 Dianna L. Guenther, 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 | 16 |
|---|---|
| Services billed to Medicare | 48 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Practice locations
Addresses where Dianna L. Guenther is enrolled with Medicare (CMS data updated October 2, 2026).
- 1292 Waianuenue AveHilo, HI 96720 (808) 934‑4000
- 3288 Moanalua RdHonolulu, HI 96819 (808) 432‑0000
- 74 -517 Honokohau StKailua Kona, HI 96740 (808) 432‑0000
- 80 Mahalani StWailuku, HI 96793 (808) 243‑6000
Group practices
Medicare enrollment lists Dianna L. Guenther as a member of this group (CMS data updated October 2, 2026).
- Hawaii Permanente Medical Group Inc704 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Hilo
Clinicians with the same Medicare primary specialty in Hilo, HI — not a recommendation.
Other clinicians in Hawaii Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902081417 |
| 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
- 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