NPPES file of Aug 9, 2026

Dianna L. Guenther, PA-C

Medical Physician Assistant · Hilo, HI

Dianna L. Guenther, PA-C is a medical physician assistant with a practice address in Hilo, Hawaii, and NPI 1902081417, issued on Jan 2, 2008. Check the license (Hawaii AMD-198, as entered in NPPES) with the Hawaii board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902081417
Name
Dianna L. Guenther
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
AMD-198 HI
Self-reported in NPPES; status is on the state search
Practice location
1292 Waianuenue Ave, Hilo, HI 96720
Phone
(808) 934-4000
Enumerated
Jan 2, 2008
Record last updated
Jun 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080207000224); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1292 Waianuenue Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Adam Adler, MDFamily Medicine Physician1053568923
  2. Nadezna Lyn Ang, MDInternal Medicine Physician1902979883
  3. Mina Begner, LCSWClinical Social Worker1598829038
  4. Miki Cain, D.O.Pediatrics Physician1184824401
  5. Jay Charles, PA-CPhysician Assistant1861494270
  6. Matthew Davies, DOFamily Medicine Physician1508073586

Verify Dianna L. Guenther in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
    Search for license AMD-198
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Hawaii license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

87% fewer Medicare Part D claims than the average medical physician assistant in 2024

147 Medicare Part D claims for 86 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 30 claims were for opioids.

  1. Dianna Guenther147
  2. Specialty average1,148

Most prescribed

  1. Prednisone30 claims
  2. Ibuprofen27 claims
  3. Amoxicillin20 claims
  4. Hydrocodone-Acetaminophen18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Hawaii Permanente Medical Group IncHilo, HI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Medical Physician Assistant providers in Hawaii

There are 111 medical physician assistant records in Hawaii.

Other medical physician assistant records in Hawaii

  1. Kellie Acosta, PA-CKailua Kona, HI1053777342
  2. Jeanelle Ahuna, PHYSICIAN ASSISTANTHonolulu, HI1043463482
  3. Marc Albertson, PA-CHonolulu, HI1003933078
  4. Dennis Alvaro, PA-CHonolulu, HI1194746784
  5. Richard Ares, PA-CTamc, HI1093784936
  6. Kenji AshmanHonolulu, HI1639848963
  7. Stefanie AssakawaMililani, HI1831029685
  8. Larry Au, PAHonolulu, HI1598879876
  9. Stephanie Barrientos, PA-CWahiawa, HI1316658925
  10. Sarah Beaton, PA-CKailua, HI1043419021

Common questions

What is Dianna L. Guenther, PA-C's NPI number?

Dianna L. Guenther, PA-C's National Provider Identifier (NPI) is 1902081417, issued on Jan 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Dianna L. Guenther, PA-C located?

The NPPES record lists a practice address at 1292 Waianuenue Ave, Hilo, HI, 96720. Phone: (808) 934-4000. Providers update this record themselves, so call before visiting.

How can I verify Dianna L. Guenther, PA-C's license?

NPPES lists Hawaii license number AMD-198, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.

How much does Dianna L. Guenther, PA-C prescribe under Medicare Part D?

In 2024, Dianna L. Guenther, PA-C had 147 Medicare Part D claims for 86 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.