Waldo Santiago Montalvo, M.D.
NPI 1386624716 · Gastroenterology Physician · Aguadilla, PR
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Waldo Santiago Montalvo, M.D. is a Gastroenterology Physician provider in Aguadilla, PR (NPI 1386624716).
Provider details
- NPI number
- 1386624716
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 10425 (PR)
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
20 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 666 | 402 |
| Pantoprazole Sodium | 458 | 280 |
| Hydrocortisonebrand: Procto-Med Hc | 134 | 125 |
| Lansoprazole | 95 | 61 |
| Omeprazole | 92 | 62 |
| Hydrocortisone | 80 | 74 |
| Metronidazole | 67 | 64 |
| Hydrocortisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$89 across 2 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
- 2006-01-20
- Last updated
- 2016-10-24
Frequently asked questions
- What is Waldo Santiago Montalvo's NPI number?
- Waldo Santiago Montalvo's National Provider Identifier (NPI) is 1386624716, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Waldo Santiago Montalvo's specialty?
- Waldo Santiago Montalvo is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Waldo Santiago Montalvo located?
- Waldo Santiago Montalvo's practice location on file with NPPES is 23 Calle Severiano Cuevas, Aguadilla, PR 00603-5713.
- What is Waldo Santiago Montalvo's phone number?
- The practice phone number listed in the NPPES registry for Waldo Santiago Montalvo is (787) 882-2929.
- Does Waldo Santiago Montalvo accept Medicare?
- Waldo Santiago Montalvo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Waldo Santiago Montalvo's NPI active?
- Yes — Waldo Santiago Montalvo's NPI (1386624716) is active in the NPPES registry as of the last update on 2016-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.