Alfred Valdivieso, MD
NPI 1811198922 · General Practice Physician · San Juan, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alfred Valdivieso, MD is a General Practice Physician provider in San Juan, PR (NPI 1811198922).
Provider details
- NPI number
- 1811198922
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 19246 (PR)
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
235 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 35 Minutes99232 | 104 | $76 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 64 | $48 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 39 | $78 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 15 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 13 | $68 |
Typical Medicare-allowed amounts for these services range $8–$78 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 126 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 441 | 85 |
| Atorvastatin Calcium | 328 | 64 |
| Amlodipine Besylate | 267 | 65 |
| Metformin Hcl | 250 | 56 |
| Simvastatin | 243 | 58 |
| Famotidine | 237 | 55 |
| Pantoprazole Sodium | 216 | 64 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$199 across 5 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
- 2007-05-29
- Last updated
- 2023-03-07
- Certified
- 2021-10-28
Frequently asked questions
- What is Alfred Valdivieso's NPI number?
- Alfred Valdivieso's National Provider Identifier (NPI) is 1811198922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alfred Valdivieso's specialty?
- Alfred Valdivieso is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Alfred Valdivieso located?
- Alfred Valdivieso's practice location on file with NPPES is 1396 Calle San Rafael Ste 15, San Juan, PR 00909-2525.
- What is Alfred Valdivieso's phone number?
- The practice phone number listed in the NPPES registry for Alfred Valdivieso is (787) 405-4404.
- Does Alfred Valdivieso accept Medicare?
- Alfred Valdivieso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alfred Valdivieso's NPI active?
- Yes — Alfred Valdivieso's NPI (1811198922) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.