Doctor profile · Federal record

Dr. Randy Villanueva, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Vallejo, CA

  • NPI 1518270040
  • Accepts Medicare
  • 17 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
975 Sereno Dr
Vallejo, CA 945892441
(707) 651-2440
Mailing address
517 Lansing Cir
Benicia, CA 945103974

Credentials & registration

NPPES · NUCC
NPI registered
July 2010 — 16 yrs on file
Profile last updated
February 11, 2022
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A11659

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518270040. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
84
Distinct HCPCS
2
Medicare allowed
$7,123
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 69 24 $84
99238 Hospital discharge day management, 30 minutes or less 15 15 $87

In context: peer comparison

Among 12 peers in this city , average services per provider: 138. This provider delivers 0.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
303
Patients
188
Total drug cost
$5,124
Drug Type Claims Patients Total cost
Cefpodoxime Proxetil Generic 42 42 $1,161
Atorvastatin Calcium Generic 38 14 $841
Doxycycline Monohydrate Generic 27 27 $270
Amlodipine Besylate Generic 25 11 $467
Clopidogrel (Clopidogrel Bisulfate) Brand 23 12 $453
Prednisone Generic 18 17 $169
Lisinopril Generic 17 13 $172
Metoprolol Succinate Generic 17 12 $545
Ciprofloxacin Hcl Generic 16 16 $145
Furosemide Generic 16 0 $187

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Randy Villanueva's medical specialty?
Dr. Randy Villanueva practices Internal Medicine Physician in Vallejo, CA.
Where does Dr. Randy Villanueva practice?
Dr. Randy Villanueva practices at 975 Sereno Dr, Vallejo, CA 945892441. Office phone: 7076512440.
What is Dr. Randy Villanueva's NPI?
Dr. Randy Villanueva's National Provider Identifier (NPI) is 1518270040, issued by NPPES.
Does Dr. Randy Villanueva accept Medicare assignment?
Yes. Dr. Randy Villanueva accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Randy Villanueva commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.