Doctor profile · Federal record

Dr. James Son, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Santa Clara, CA

  • NPI 1972535680
  • Accepts Medicare
  • 34 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1150 Scott Blvd Ste B3
Santa Clara, CA 950504547
(408) 261-7245
fax (408) 261-7249

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
November 28, 2011
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A055194
Medicaid
CA #00A551940

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972535680. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
53
Distinct HCPCS
2
Medicare allowed
$6,921
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 29 15 $110
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 24 24 $156

In context: peer comparison

Among 14 peers in Santa Clara Internal Medicine Physician, average services per provider: 48. This provider delivers 1.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
943
Patients
232
Total drug cost
$17,187
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 206 65 $3,698
Amlodipine Besylate Generic 140 45 $2,188
Losartan Potassium Generic 138 42 $2,709
Metformin Hcl Generic 85 25 $1,211
Omeprazole Generic 60 18 $760
Metoprolol Succinate Generic 47 13 $1,252
Hydrochlorothiazide Generic 36 11 $386
Levothyroxine Sodium Generic 35 0 $1,026
Tamsulosin Hcl Generic 33 13 $915
Fluticasone Propionate Generic 32 0 $342

Frequently asked questions

Auto-generated from federal data
What is Dr. James Son's medical specialty?
Dr. James Son practices Internal Medicine Physician in Santa Clara, CA.
Where does Dr. James Son practice?
Dr. James Son practices at 1150 Scott Blvd Ste B3, Santa Clara, CA 950504547. Office phone: 4082617245.
What is Dr. James Son's NPI?
Dr. James Son's National Provider Identifier (NPI) is 1972535680, issued by NPPES.
Does Dr. James Son accept Medicare assignment?
Yes. Dr. James Son accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Son commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.