NPPES file of Aug 9, 2026

Kenneth Downard Herbst, M.D.

Hematology & Oncology Physician · Waianae, HI

Kenneth Downard Herbst, M.D. is a hematology & oncology physician with a practice address in Waianae, Hawaii, and NPI 1497783351, issued on Jun 29, 2006. Check the license (Hawaii 24582, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1497783351
Name
Kenneth Downard Herbst
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
24582 HI
G20622 CA
Self-reported in NPPES; status is on the state search
Practice location
86-260 Farrington Hwy, Waianae, HI 96792
Phone
(808) 697-3300
Enumerated
Jun 29, 2006
Record last updated
Oct 2, 2024
Medicare enrollment
Enrolled (PECOS I20250204002155); 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.
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Also registered at 86-260 Farrington Hwy

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

  1. Christina Adams, M.D.Family Medicine Physician1215132915
  2. Tiana Rose Ahue, PA-CPhysician Assistant1740731546
  3. Ku'Upua Akana, PHARM.DPharmacist1851679377
  4. Cynthia Akasaki, R.D.Registered Dietitian1346434321
  5. Kevin Akiyama, PSY.DClinical Psychologist1487974838
  6. Razel Alibin, FNPFamily Nurse Practitioner1043000805

Verify Kenneth Downard Herbst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersHawaii Medical Board
    Search for license 24582
    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
Open 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.

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Bills Medicare through one group practice

  1. Waianae District Comprehensive Health And Hospital Board IncWaianae, HI

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

Kenneth Downard Herbst among 49 hematology & oncology physician records in Hawaii

Kenneth Downard Herbst, M.D. is one of 49 hematology & oncology physician records with a practice address in Hawaii. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 39% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1975 · median 2000 among the 34 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Hawaii

There are 49 hematology & oncology physician records in Hawaii.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. William Adler, M.D.Wailuku, HI 967931710918610
  2. Devena Alston-Johnson, MDWailuku, HI 967931891732616
  3. Ramin Altaha, MDWailuku, HI 967931083649982
  4. Thomas Deleon, M.D.Wailuku, HI 967931245526623
  5. Larry Ebbert, MDWailuku, HI 967931518058163
  6. Gregory Pollack, M.D.Wailuku, HI 967931346428158
  7. Judy Schmidt, M.D.Wailuku, HI 967931679578827
  8. Dhiraj Yadav, M.D.Wailuku, HI 967931104267608

Common questions

What is Kenneth Downard Herbst, M.D.'s NPI number?

Kenneth Downard Herbst, M.D.'s National Provider Identifier (NPI) is 1497783351, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth Downard Herbst, M.D. located?

The NPPES record lists a practice address at 86-260 Farrington Hwy, Waianae, HI, 96792. Phone: (808) 697-3300. Providers update this record themselves, so call before visiting.

How can I verify Kenneth Downard Herbst, M.D.'s license?

NPPES lists Hawaii license number 24582, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.