Manuel Santini Santiago, M.D.
NPI 1346243722 · Gastroenterology Physician · Rio Piedras, PR
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Manuel Santini Santiago, M.D. is a Gastroenterology Physician provider in Rio Piedras, PR (NPI 1346243722).
Provider details
- NPI number
- 1346243722
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6636 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
66 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 50 | $88 |
| 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 | 16 | $56 |
Typical Medicare-allowed amounts for these services range $56–$88 (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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 467 | 229 |
| Midazolam Hcl | 206 | 195 |
| Midazolam Hcl/Pfbrand: Midazolam Hcl | 144 | 139 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 143 | 143 |
| Sodium, Potassium,mag Sulfatesbrand: Suprep | 134 | 132 |
| Flumazenil | 133 | 128 |
| Linaclotidebrand: Linzess | 104 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-31
- Last updated
- 2007-12-07
Frequently asked questions
- What is Manuel Santini Santiago's NPI number?
- Manuel Santini Santiago's National Provider Identifier (NPI) is 1346243722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Manuel Santini Santiago's specialty?
- Manuel Santini Santiago is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Manuel Santini Santiago located?
- Manuel Santini Santiago's practice location on file with NPPES is De Diego Apt 368, Rio Piedras, PR 00923-3054.
- What is Manuel Santini Santiago's phone number?
- The practice phone number listed in the NPPES registry for Manuel Santini Santiago is (787) 764-0738.
- Does Manuel Santini Santiago accept Medicare?
- Manuel Santini Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Manuel Santini Santiago's NPI active?
- Yes — Manuel Santini Santiago's NPI (1346243722) is active in the NPPES registry as of the last update on 2007-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.