Rowena Santos, MD
NPI 1700942224 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rowena Santos, MD is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1700942224).
Provider details
- NPI number
- 1700942224
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2006039232 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,089 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 324 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 184 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 96 | $124 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 69 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 68 | $13 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 58 | $53 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 152 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 574 | 154 |
| Lisinopril | 489 | 132 |
| Amlodipine Besylate | 450 | 128 |
| Levothyroxine Sodium | 387 | 98 |
| Losartan Potassium | 367 | 92 |
| Omeprazole | 282 | 79 |
| Alprazolam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$201 across 10 records (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
Additional practice locations (1)
- 10010 Kennerly Rd3 SouthbridgeSaint Louis, MO 63128-2106Phone: (314) 525-1328Fax: (314) 525-1378
Registry dates
- Enumerated
- 2006-12-29
- Last updated
- 2018-04-11
Frequently asked questions
- What is Rowena Santos's NPI number?
- Rowena Santos's National Provider Identifier (NPI) is 1700942224, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rowena Santos's specialty?
- Rowena Santos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rowena Santos located?
- Rowena Santos's practice location on file with NPPES is 5034 Griffin Rd, Saint Louis, MO 63128-3418.
- What is Rowena Santos's phone number?
- The practice phone number listed in the NPPES registry for Rowena Santos is (314) 843-7333.
- Does Rowena Santos accept Medicare?
- Rowena Santos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rowena Santos's NPI active?
- Yes — Rowena Santos's NPI (1700942224) is active in the NPPES registry as of the last update on 2018-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.