Doctor profile · Federal record

Dr. Nicolas Villanueva, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Honolulu, HI

  • NPI 1346683463
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
321 N Kuakini St Ste 412
Honolulu, HI 96817
(808) 531-8521
Mailing address
321 N Kuakini St Ste 404
Honolulu, HI 968172360

Credentials & registration

NPPES · NUCC
NPI registered
April 2013 — 13 yrs on file
Profile last updated
January 12, 2023
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Hawaii #20183

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346683463. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
751
Distinct HCPCS
8
Medicare allowed
$95,634
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 233 38 $147
99215 Established patient office or other outpatient visit, 40-54 minutes 176 38 $154
99214 Established patient office or other outpatient visit, 30-39 minutes 106 47 $108
99214 Established patient office or other outpatient visit, 30-39 minutes 89 38 $99
99213 Established patient office or other outpatient visit, 20-29 minutes 70 40 $78
99213 Established patient office or other outpatient visit, 20-29 minutes 48 30 $68
99205 New patient office or other outpatient visit, 60-74 minutes 16 16 $186
99205 New patient office or other outpatient visit, 60-74 minutes 13 13 $172

In context: peer comparison

Among 12 peers in Honolulu Hematology & Oncology Physician, average services per provider: 222. This provider delivers 3.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,131
Transactions
34
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 11 $227.48
US Oncology Corporate, INC. 1 $168.35
Janssen Biotech, INC. 4 $154.84
Takeda Pharmaceuticals U.S.A., INC. 3 $80.44
Aveo Pharmaceuticals, INC. 1 $74.99
PharmaEssentia USA Corporation 2 $58.02
Jazz Pharmaceuticals INC. 2 $48.18
Merck Sharp & Dohme LLC 2 $45.04
BeiGene USA, INC. 2 $37.89
Regeneron Healthcare Solutions, INC. 1 $30.85
Exelixis INC. 1 $28.81
Bayer Healthcare Pharmaceuticals INC. 1 $26.91
Abbvie INC. 1 $21.68
AstraZeneca Pharmaceuticals Lp 1 $20.55
Alexion Pharmaceuticals, INC. 1 $20.28

By nature of payment

Food and Beverage
$956
Education
$175

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
569
Patients
134
Total drug cost
$1,206,243
Drug Type Claims Patients Total cost
Dexamethasone Generic 81 23 $882
Prednisone Generic 63 16 $417
Anastrozole Generic 54 18 $1,665
Prochlorperazine Maleate Generic 52 38 $671
Acyclovir Generic 47 11 $949
Abiraterone Acetate Generic 37 0 $123,311
Loperamide (Loperamide Hcl) Brand 34 17 $416
Tagrisso (Osimertinib Mesylate) Brand 34 0 $598,793
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 33 11 $188
Eliquis (Apixaban) Brand 29 0 $17,622

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicolas Villanueva's medical specialty?
Dr. Nicolas Villanueva practices Hematology & Oncology Physician in Honolulu, HI.
Where does Dr. Nicolas Villanueva practice?
Dr. Nicolas Villanueva practices at 321 N Kuakini St Ste 412, Honolulu, HI 96817. Office phone: 8085318521.
What is Dr. Nicolas Villanueva's NPI?
Dr. Nicolas Villanueva's National Provider Identifier (NPI) is 1346683463, issued by NPPES.
Does Dr. Nicolas Villanueva accept Medicare assignment?
Yes. Dr. Nicolas Villanueva accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nicolas Villanueva commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.