Doctor profile · Federal record

Dr. Khoa Nguyen, MD

Internal Medicine Physician (CMS: Internal Medicine) · San Jose, CA

  • NPI 1235203555
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
260 International Cir
San Jose, CA 951191130
(408) 972-7000
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123466

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
December 22, 2021
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A73945
Medicaid
CA #00A739450

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235203555. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
14
Distinct HCPCS
1
Medicare allowed
$929
HCPCS Description Services Patients Avg allowed
99212 Established patient office or other outpatient visit, 10-19 minutes 14 11 $66

In context: peer comparison

Among 94 peers in San Jose Internal Medicine Physician, average services per provider: 175. This provider delivers 0.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,630
Patients
1,275
Total drug cost
$53,453
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 624 212 $8,435
Losartan Potassium Generic 520 184 $8,271
Amlodipine Besylate Generic 297 101 $4,094
Tamsulosin Hcl Generic 295 110 $4,986
Levothyroxine Sodium Generic 235 74 $5,390
Hydrochlorothiazide Generic 229 78 $2,316
Simvastatin Generic 215 76 $2,603
Metformin Hcl Generic 183 70 $2,503
Lisinopril Generic 169 59 $2,472
Atenolol Generic 168 54 $2,575

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Khoa Nguyen's medical specialty?
Dr. Khoa Nguyen practices Internal Medicine Physician in San Jose, CA.
Where does Dr. Khoa Nguyen practice?
Dr. Khoa Nguyen practices at 260 International Cir, San Jose, CA 951191130. Office phone: 4089727000.
What is Dr. Khoa Nguyen's NPI?
Dr. Khoa Nguyen's National Provider Identifier (NPI) is 1235203555, issued by NPPES.
Does Dr. Khoa Nguyen accept Medicare assignment?
Yes. Dr. Khoa Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Khoa Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.