Rowena Delos Santos, MD
NPI 1154448207 · Nephrology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rowena Delos Santos, MD is a Nephrology Physician provider in Saint Louis, MO (NPI 1154448207).
Provider details
- NPI number
- 1154448207
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2012013845 (MO)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,045 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 285 | $113 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 218 | $169 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 180 | $76 |
| Urinalysis, Manual Test81002 | 146 | $3 |
| Dialysis Procedure Including 1 Evaluation90945 | 87 | $76 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 75 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 61 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 928 | 190 |
| Atorvastatin Calcium | 691 | 135 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 523 | 128 |
| Amlodipine Besylate | 513 | 110 |
| Carvedilol | 485 | 100 |
| Famotidine | 446 | 91 |
| Pantoprazole Sodium | 355 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,822 across 7 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
Registry dates
- Enumerated
- 2007-03-23
- Last updated
- 2025-04-17
Frequently asked questions
- What is Rowena Delos Santos's NPI number?
- Rowena Delos Santos's National Provider Identifier (NPI) is 1154448207, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rowena Delos Santos's specialty?
- Rowena Delos Santos is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Rowena Delos Santos located?
- Rowena Delos Santos's practice location on file with NPPES is 4921 Parkview Pl, Saint Louis, MO 63110-1032.
- What is Rowena Delos Santos's phone number?
- The practice phone number listed in the NPPES registry for Rowena Delos Santos is (314) 362-7603.
- Does Rowena Delos Santos accept Medicare?
- Rowena Delos 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 Delos Santos's NPI active?
- Yes — Rowena Delos Santos's NPI (1154448207) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.