Nicolas Alan Villanueva, MD
Hematology & Oncology Physician · Honolulu, HI
Nicolas Alan Villanueva, MD is a hematology & oncology physician with a practice address in Honolulu, Hawaii, and NPI 1346683463, issued on Apr 8, 2013. Check the license (Hawaii 20183, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nicolas Alan Villanueva
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 20183 HI
Self-reported in NPPES; status is on the state search - Practice location
- 321 N Kuakini St Ste 412, Honolulu, HI 96817
- Phone
- (808) 531-8521
- Enumerated
- Apr 8, 2013
- Record last updated
- Jan 12, 2023
- Medicare enrollment
- Enrolled (PECOS I20190618001291); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 49 in Hawaii → Look up another NPI →
Also registered at 321 N Kuakini St Ste 412
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shaun Donegan, MDMedical Oncology Physician1104038249
- Jodi Kagihara, M.D.Hematology & Oncology Physician1598176802
Verify Nicolas Alan Villanueva in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license 20183Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average hematology & oncology physician in 2024
962 Medicare Part D claims for 156 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 24 claims were for opioids.
Most prescribed
- Dexamethasone78 claims
- Tagrisso76 claims
- Anastrozole66 claims
- Prochlorperazine Maleate56 claims
- Loperamide36 claims
- Eliquis33 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.
Industry payments in 2024: $1,131.03
39 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- The Queens Medical CenterEwa Beach, HI · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nicolas Alan Villanueva among 49 hematology & oncology physician records in Hawaii
Nicolas Alan Villanueva, MD 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 2013, is newer than 84% of them.
- NPI issued2013 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2013 · median 2000 among the 34 with a school on file
- Record last updated2023 · 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.
All 49 in Hawaii → Every provider in Honolulu → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Jared Acoba, M.D.Honolulu, HI 968171508889338
- Jodi Kagihara, M.D.Honolulu, HI 968171598176802
- Kaye Kawahara, M.D.Honolulu, HI 968171225005176
- Michelle Miyashiro, M.D.Honolulu, HI 968171336116706
- Gordon Nakano, M.D.Honolulu, HI 968171356318208
- Ryon Nakasone, MDHonolulu, HI 968171114138351
- Kenneth Sumida, M.D.Honolulu, HI 968171437126380
- Keola Beale, M.D.Honolulu, HI 968191699706622
Common questions
What is Nicolas Alan Villanueva, MD's NPI number?
Nicolas Alan Villanueva, MD's National Provider Identifier (NPI) is 1346683463, issued on Apr 8, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Nicolas Alan Villanueva, MD located?
The NPPES record lists a practice address at 321 N Kuakini St Ste 412, Honolulu, HI, 96817. Phone: (808) 531-8521. Providers update this record themselves, so call before visiting.
How can I verify Nicolas Alan Villanueva, MD's license?
NPPES lists Hawaii license number 20183, 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 Nicolas Alan Villanueva, MD prescribe under Medicare Part D?
In 2024, Nicolas Alan Villanueva, MD had 962 Medicare Part D claims for 156 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.