Doctor profile · Federal record

Dr. Ma. Dina Santos, M.D.

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

  • NPI 1073667721
  • Accepts Medicare
  • 39 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2500 Merced St
San Leandro, CA 945774201
(510) 454-1000

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
December 6, 2021
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A67308
Medicaid
CA #00A673080

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1073667721. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$27
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Dexcom, INC. 1 $27.11

By nature of payment

Food and Beverage
$27

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,210
Patients
1,071
Total drug cost
$39,689
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 540 176 $7,209
Amlodipine Besylate Generic 421 141 $4,841
Losartan Potassium Generic 401 131 $4,578
Lisinopril Generic 287 93 $3,292
Metformin Hcl ER (Metformin Hcl) Brand 228 80 $2,105
Atenolol Generic 209 69 $2,550
Simvastatin Generic 185 62 $2,064
Levothyroxine Sodium Generic 155 53 $3,367
Alendronate Sodium Generic 134 51 $1,379
Metoprolol Tartrate Generic 128 42 $1,319

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ma. Dina Santos's medical specialty?
Dr. Ma. Dina Santos practices Internal Medicine Physician in San Leandro, CA.
Where does Dr. Ma. Dina Santos practice?
Dr. Ma. Dina Santos practices at 2500 Merced St, San Leandro, CA 945774201. Office phone: 5104541000.
What is Dr. Ma. Dina Santos's NPI?
Dr. Ma. Dina Santos's National Provider Identifier (NPI) is 1073667721, issued by NPPES.
Does Dr. Ma. Dina Santos accept Medicare assignment?
Yes. Dr. Ma. Dina Santos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.