NPPES file of Aug 9, 2026

Stephen A. Warsh, M.D.

General Practice Physician · Hilo, HI

Stephen A. Warsh, M.D. is a general practice physician with a practice address in Hilo, Hawaii, and NPI 1801858295, issued on Apr 3, 2006. Check the license (Hawaii MD-8205, 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801858295
Name
Stephen A. Warsh
Credential
M.D.
Primary taxonomy
General Practice Physician 208D00000X
License number
MD-8205 HI
Self-reported in NPPES; status is on the state search
Practice location
45 Mohouli St, Hilo, HI 96720
Phone
(808) 969-3051
Enumerated
Apr 3, 2006
Record last updated
Jul 3, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(808) 969-3728
Medicare enrollment
Enrolled (PECOS I20070206000626); 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 45 Mohouli St

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

  1. Kuikawanapua Akiona, RNRegistered Nurse1073367116
  2. Leilani Aldrich, APRNNurse Practitioner1285982876
  3. Elizabeth Alonzo, AGPCNP-BCGerontology Nurse Practitioner1639569189
  4. Sylvia Amaral Arquitola, LCSWClinical Social Worker1629731070
  5. Tranae Apigo, RNGeneral Practice Registered Nurse1932953569
  6. Michelle Arnold, RNRegistered Nurse1033967864

Verify Stephen A. Warsh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersHawaii Medical Board
    Search for license MD-8205
    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.

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

90% fewer Medicare Part D claims than the average general practice physician in 2024

290 Medicare Part D claims for 163 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.

  1. Stephen Warsh290
  2. Specialty average3,030

Most prescribed

  1. Prednisone29 claims
  2. Albuterol Sulfate Hfa26 claims
  3. Mupirocin26 claims
  4. Amoxicillin-Clavulanate Potass22 claims
  5. Azithromycin17 claims
  6. Cefdinir17 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Hilo Urgent Care Center LLCHilo, HI

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

Stephen A. Warsh among 171 general practice physician records in Hawaii

Stephen A. Warsh, M.D. is one of 171 general practice physician records with a practice address in Hawaii. 36% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 77% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 16% of these records are
  • Graduated1987 · median 1991 among the 28 with a school on file
  • Record last updated2008 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in Hawaii

There are 171 general practice physician records in Hawaii.

The 8 general practice physician records with the nearest ZIP codes

  1. Robert Goodwin, M.D.Hilo, HI 967201174618094
  2. Fatima Phillips, M.D., M.P.H., PH.D.Hilo, HI 967201548446487
  3. Ross Vanderhoof, M.D.Hilo, HI 967201770994824
  4. Adam Gratz, D.O.Hawi, HI 967191598895351
  5. Thomas Austin, MDPrinceville, HI 967221215915632
  6. Blase Lee Loy, M.D.Holualoa, HI 967251245477710
  7. Paul Kaiwi, M.D.Hana, HI 967131730123365
  8. Gretchen Salmon, M.D.Honokaa, HI 967271356430326

Common questions

What is Stephen A. Warsh, M.D.'s NPI number?

Stephen A. Warsh, M.D.'s National Provider Identifier (NPI) is 1801858295, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen A. Warsh, M.D. located?

The NPPES record lists a practice address at 45 Mohouli St, Hilo, HI, 96720. Phone: (808) 969-3051. Providers update this record themselves, so call before visiting.

How can I verify Stephen A. Warsh, M.D.'s license?

NPPES lists Hawaii license number MD-8205, 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.

How much does Stephen A. Warsh, M.D. prescribe under Medicare Part D?

In 2024, Stephen A. Warsh, M.D. had 290 Medicare Part D claims for 163 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.

What is Stephen A. Warsh, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.