Doctor profile · Federal record

Dr. Sze Hoay Ding, M.D.

Internal Medicine Physician · San Marcos, CA

  • NPI 1023239035
  • 19 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
400 Craven RD
San Marcos, CA 920784201
(619) 318-7476

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
March 7, 2023
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #C141004

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023239035. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$113
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ConvaTec Inc. 1 $112.55

By nature of payment

Food and Beverage
$113

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,860
Patients
973
Total drug cost
$52,651
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 385 127 $5,211
Levothyroxine Sodium Generic 345 102 $7,777
Amlodipine Besylate Generic 307 112 $3,898
Rosuvastatin Calcium Generic 306 109 $3,768
Lisinopril Generic 252 89 $3,312
Losartan Potassium Generic 228 82 $3,146
Omeprazole Generic 158 61 $2,133
Metoprolol Tartrate Generic 129 43 $1,381
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 127 30 $2,346
Potassium Chloride Generic 120 41 $6,946

Frequently asked questions

Auto-generated from federal data
What is Dr. Sze Hoay Ding's medical specialty?
Dr. Sze Hoay Ding practices Internal Medicine Physician in San Marcos, CA.
Where does Dr. Sze Hoay Ding practice?
Dr. Sze Hoay Ding practices at 400 Craven RD, San Marcos, CA 920784201. Office phone: 6193187476.
What is Dr. Sze Hoay Ding's NPI?
Dr. Sze Hoay Ding's National Provider Identifier (NPI) is 1023239035, issued by NPPES.