Ma. Dina Santos, M.D.
NPI 1073667721 · Internal Medicine Physician · San Leandro, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ma. Dina Santos, M.D. is a Internal Medicine Physician provider in San Leandro, CA (NPI 1073667721).
Provider details
- NPI number
- 1073667721
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A67308 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 86 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 557 | 186 |
| Amlodipine Besylate | 440 | 145 |
| Losartan Potassium | 411 | 131 |
| Lisinopril | 256 | 87 |
| Metformin Hclbrand: Metformin Hcl Er | 221 | 77 |
| Atenolol | 198 | 64 |
| Simvastatin | 171 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-22
- Last updated
- 2021-12-06
Frequently asked questions
- What is Ma. Dina Santos's NPI number?
- Ma. Dina Santos's National Provider Identifier (NPI) is 1073667721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ma. Dina Santos's specialty?
- Ma. Dina Santos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ma. Dina Santos located?
- Ma. Dina Santos's practice location on file with NPPES is 2500 Merced St, San Leandro, CA 94577-4201.
- What is Ma. Dina Santos's phone number?
- The practice phone number listed in the NPPES registry for Ma. Dina Santos is (510) 454-1000.
- Does Ma. Dina Santos accept Medicare?
- Ma. Dina Santos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ma. Dina Santos's NPI active?
- Yes — Ma. Dina Santos's NPI (1073667721) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.