Manuel A. Santini Santiago, M.D.
Gastroenterology Physician · Rio Piedras, PR
Manuel A. Santini Santiago, M.D. is a gastroenterology physician with a practice address in Rio Piedras, Puerto Rico, and NPI 1346243722, issued on May 31, 2005. Check the license (Puerto Rico 6636, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Manuel A. Santini Santiago
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 6636 PR
Self-reported in NPPES; status is on the state search - Practice location
- DE Diego Apt 368, Rio Piedras, PR 00923
- Phone
- (787) 764-0738
- Enumerated
- May 31, 2005
- Record last updated
- Dec 7, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (787) 764-8039
- Medicare enrollment
- Enrolled (PECOS I20101124000239); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 203 in Puerto Rico → Look up another NPI →
Verify Manuel A. Santini Santiago in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 6636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average gastroenterology physician in 2024
2,190 Medicare Part D claims for 650 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Pantoprazole Sodium467 claims
- Midazolam Hcl206 claims
- Sod Sulf-Potass Sulf-Mag Sulf143 claims
- Suprep134 claims
- Flumazenil133 claims
- Linzess104 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Manuel A. Santini Santiago among 203 gastroenterology physician records in Puerto Rico
Manuel A. Santini Santiago, M.D. is one of 203 gastroenterology physician records with a practice address in Puerto Rico. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 80% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated1978 · median 2000 among the 165 with a school on file
- Record last updated2007 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 gastroenterology physician records list a practice address in Rio Piedras
They are 6 of the 372 NPPES records with a practice address in Rio Piedras, and 203 gastroenterology physician records in Puerto Rico.
All 203 in Puerto Rico → Every provider in Rio Piedras → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Conrado Asenjo, MDSan Juan, PR 009231104835073
- Jorge Melendez- Bonilla, MDSan Juan, PR 009231902921364
- Luis Navarro, MDSan Juan, PR 009231508913930
- Jose Munoz Acaba, MDSan Juan, PR 009221295984375
- Jose Vega-Martinez, MDSan Juan, PR 009221801050695
- Fernando Bonilla-Valentin, MDSan Juan, PR 009211780046094
- Bianca Goyco CortesSan Juan, PR 009211922585397
- Jorge Hernandez-Denton, M.D.San Juan, PR 009211447310537
Common questions
What is Manuel A. Santini Santiago, M.D.'s NPI number?
Manuel A. Santini Santiago, M.D.'s National Provider Identifier (NPI) is 1346243722, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Manuel A. Santini Santiago, M.D. located?
The NPPES record lists a practice address at DE Diego Apt 368, Rio Piedras, PR, 00923. Phone: (787) 764-0738. Providers update this record themselves, so call before visiting.
How can I verify Manuel A. Santini Santiago, M.D.'s license?
NPPES lists Puerto Rico license number 6636, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Manuel A. Santini Santiago, M.D. prescribe under Medicare Part D?
In 2024, Manuel A. Santini Santiago, M.D. had 2,190 Medicare Part D claims for 650 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.