Steven M. Nguyen, MD
Radiation Oncology Physician · Wailuku, HI
Steven M. Nguyen, MD is a radiation oncology physician with a practice address in Wailuku, Hawaii, and NPI 1588152490, issued on Apr 26, 2018. Check the license (Hawaii MD-21112, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Steven M. Nguyen
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- MD-21112 HI
01083338A IN
Self-reported in NPPES; status is on the state search - Practice location
- 227 Mahalani St, Wailuku, HI 96793
- Phone
- (808) 249-1600
- Enumerated
- Apr 26, 2018
- Record last updated
- Aug 5, 2024
- Fax
- (808) 249-1651
- Medicare enrollment
- Enrolled (PECOS I20240701000953); accepts Medicare assignment
- Medical or professional school
- Univ Of Central Florida, College Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 28 in Hawaii → Look up another NPI →
Also registered at 227 Mahalani St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bobby Baker, M.D.Specialist1255406104
- Benjamin Falit, M.D.Radiation Oncology Physician1437474046
- Chandra Martens, M.D.Specialist1033589809
Verify Steven M. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-21112Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average radiation oncology physician in 2024
14 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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
- Pacific Cancer Institute LLCWailuku, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven M. Nguyen among 28 radiation oncology physician records in Hawaii
Steven M. Nguyen, MD is one of 28 radiation oncology physician records with a practice address in Hawaii. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 93% of them.
- NPI issued2018 · 93% of these records are older, 0% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2018 · median 2010 among the 21 with a school on file
- Record last updated2024 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Hawaii
There are 28 radiation oncology physician records in Hawaii.
All 28 in Hawaii → Every provider in Wailuku → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Benjamin Falit, M.D.Wailuku, HI 967931437474046
- Jared Hara, MDHonolulu, HI 968131548751894
- Diana Lu, MDHonolulu, HI 968131437684370
- Mark Mayeda, M.D.Honolulu, HI 968131295181493
- Anthony Michaud, MDHonolulu, HI 968131225270325
- Scott Moon, M.D.Honolulu, HI 968131366415309
- Stuart Tsuji, M.D., PH.D.Honolulu, HI 968131558534602
- Vincent Brown, M.D.Honolulu, HI 968171902885247
Common questions
What is Steven M. Nguyen, MD's NPI number?
Steven M. Nguyen, MD's National Provider Identifier (NPI) is 1588152490, issued on Apr 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Steven M. Nguyen, MD located?
The NPPES record lists a practice address at 227 Mahalani St, Wailuku, HI, 96793. Phone: (808) 249-1600. Providers update this record themselves, so call before visiting.
How can I verify Steven M. Nguyen, MD's license?
NPPES lists Hawaii license number MD-21112, 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 Steven M. Nguyen, MD prescribe under Medicare Part D?
In 2024, Steven M. Nguyen, MD had 14 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. 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.