Loscar Santiago
NPI 1356655732 · Gastroenterology Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Loscar Santiago is a Gastroenterology Physician provider in San Juan, PR (NPI 1356655732).
Provider details
- NPI number
- 1356655732
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20738 (PR)
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
15 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
88 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $163 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $125 |
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 19 | $56 |
| Ultrasound Scan of Organ Tissue for Measuring Elasticity76981 | 15 | $102 |
Typical Medicare-allowed amounts for these services range $56–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 354 | 123 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 165 | 41 |
| Linaclotidebrand: Linzess | 150 | 48 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 105 | 104 |
| Sodium, Potassium,mag Sulfatesbrand: Suprep | 89 | 89 |
| Midazolam Hcl | 82 | 81 |
| Midazolam Hcl/Pf |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,614 across 23 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
- 2010-07-28
- Last updated
- 2016-05-19
Frequently asked questions
- What is Loscar Santiago's NPI number?
- Loscar Santiago's National Provider Identifier (NPI) is 1356655732, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Loscar Santiago's specialty?
- Loscar Santiago is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Loscar Santiago located?
- Loscar Santiago's practice location on file with NPPES is 10 Calle Casia, San Juan, PR 00921-3200.
- What is Loscar Santiago's phone number?
- The practice phone number listed in the NPPES registry for Loscar Santiago is (787) 641-7582.
- Does Loscar Santiago accept Medicare?
- Loscar Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Loscar Santiago's NPI active?
- Yes — Loscar Santiago's NPI (1356655732) is active in the NPPES registry as of the last update on 2016-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.