NPPES file of Aug 9, 2026

Brett W. Mathews, MD

Internal Medicine Physician · Honolulu, HI

Brett W. Mathews, MD is an internal medicine physician with a practice address in Honolulu, Hawaii, and NPI 1316392582, issued on Apr 25, 2016. Check the license (Hawaii MD-19437, 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
1316392582
Name
Brett W. Mathews
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD-19437 HI
150834 CA
Self-reported in NPPES; status is on the state search
Practice location
2828 Paa St, Honolulu, HI 96819
Phone
(808) 432-5777
Enumerated
Apr 25, 2016
Record last updated
Jun 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20241010001627); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 2016
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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8 nearest internal medicine physician records → All 902 in Hawaii → Look up another NPI →

Also registered at 2828 Paa St

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

  1. Derek AlikInternal Medicine Physician1760167910
  2. Wendy Aruga-Goto, OTOccupational Therapist1023061942
  3. Danny Asami, DPTPhysical Therapist1851759195
  4. Karen Badiable, FNP-CFamily Nurse Practitioner1881131563
  5. Kirill BalatskyInternal Medicine Physician1326778192
  6. Rebecca BassettGenetic Counselor (M.S.)1154731131

Verify Brett W. Mathews in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersHawaii Medical Board
    Search for license MD-19437    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. Hawaii Permanente Medical Group IncHonolulu, HI

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

Brett W. Mathews among 902 internal medicine physician records in Hawaii

Brett W. Mathews, MD is one of 902 internal medicine physician records with a practice address in Hawaii. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 73% of them.

  • NPI issued2016 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2016 · median 2001 among the 491 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

579 internal medicine physician records list a practice address in Honolulu

They are 579 of the 12,408 NPPES records with a practice address in Honolulu, and 902 internal medicine physician records in Hawaii.

All 902 in Hawaii → Every provider in Honolulu → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jochebed Carter, MDHonolulu, HI 968191205826492
  2. Shubhangini Devine, M.D.Honolulu, HI 968191568456796
  3. Jo-Ann Garrigan, MDHonolulu, HI 968191760432074
  4. Randolph Leon Guerrero, M.D.Honolulu, HI 968191184689671
  5. Jhoanna Mabutas, MDHonolulu, HI 968191841281599
  6. Maria Cecilia Mangrobang, M.D.Honolulu, HI 968191265481063
  7. Matthew Matko, M.D.Honolulu, HI 968191033171640
  8. Laura Nagata, M.D.Honolulu, HI 968191972552883

Common questions

What is Brett W. Mathews, MD's NPI number?

Brett W. Mathews, MD's National Provider Identifier (NPI) is 1316392582, issued on Apr 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Brett W. Mathews, MD located?

The NPPES record lists a practice address at 2828 Paa St, Honolulu, HI, 96819. Phone: (808) 432-5777. Providers update this record themselves, so call before visiting.

How can I verify Brett W. Mathews, MD's license?

NPPES lists Hawaii license number MD-19437, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.