Dr. Manuel A. Santini Santiago, MD
- Medicare services, 2024
- 66
- Medicare patients, 2024
- 38
- Part D claims, 2024
- 2,190
- Hospital affiliations
- 1
- Industry payments
- $826
- Practice address
- 371 De Diego Ave, San Juan, PR 00923
- Practice phone
- Call (787) 767-5100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Santini Santiago's professional email, personal email and mobile number
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Dr. Manuel A. Santini Santiago is a gastroenterologist in San Juan, Puerto Rico
Dr. Santini Santiago practices at Hospital San Francisco in San Juan, Puerto Rico, part of Metro Pavia Health System.
Dr. Santini Santiago's NPI, 1346243722, was assigned on May 31, 2005. Dr. Santini Santiago holds Puerto Rico license 6636.
- NPI
- 1346243722NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527254986
- NPI enumeration date
- May 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 767-5100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Manuel A. Santini Santiago practices at 2 locations in San Juan, Puerto Rico
Dr. Santini Santiago's primary practice is Hospital San Francisco, at 371 De Diego Ave, San Juan, PR 00923 in San Juan County. The practice phone is (787) 767-5100. Dr. Santini Santiago also practices at Hospital San Francisco, 405 De Diego, San Juan, PR 00923.
- Hospital San FranciscoPrimary371 De Diego Ave, San Juan, PR 00923 · San Juan CountyPhone(787) 767-5100
- Hospital San Francisco405 De Diego, San Juan, PR 00923 · San Juan CountyPhone(787) 767-5100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Manuel A. Santini Santiago is affiliated with 1 site of care
Dr. Santini Santiago's primary practice is Hospital San Francisco in San Juan, Puerto Rico, part of Metro Pavia Health System.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Manuel A. Santini Santiago's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Santini Santiago practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital San Francisco | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Metro Pavia Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Manuel A. Santini Santiago is one of 170 gastroenterologists in Puerto Rico
Gastroenterology is Dr. Santini Santiago's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Santini Santiago is licensed in Puerto Rico.
Specialties and state licenses
- Gastroenterology, Puerto RicoPrimary
Gastroenterologists near Dr. Santini Santiago
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Manuel A. Santini Santiago billed Medicare for 66 services in 2024
CMS data shows 66 Medicare services from Dr. Santini Santiago across 2 procedure codes in 2024, for 38 Medicare patients. Medicare paid $3,675 for them. Every service was in an office.
Dr. Santini Santiago's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 522024: 504%
- Other services
- 2023: 232024: 1630%
- Surgery
- 2023: 142024: 0100%
Dr. Santini Santiago compared with the Puerto Rico median for gastroenterologists, 2024
- Dr. Santini Santiago
- Puerto Rico median
- Medicare services
- 66vs 4257% above
- Medicare patients
- 38vs 2646% above
- Part D claims
- 2,035vs 1,53033% above
Medians across 175 gastroenterologists in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Santini Santiago's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Manuel A. Santini Santiago treated 38 Medicare patients in 2024, average age 74
CMS counts 38 Medicare patients who saw Dr. Santini Santiago in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Santini Santiago's median patient age at 76, with 100% women.
Dr. Santini Santiago's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Santini Santiago's Medicare patients by sex, 2024
- Women2463%
- Men1437%
Chronic conditions among Dr. Santini Santiago's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Arthritis55%
- Chronic kidney disease34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Santini Santiago's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Manuel A. Santini Santiago wrote 2,190 Medicare Part D claims in 2024
In 2024, Dr. Santini Santiago wrote 2,190 Medicare Part D claims for 650 patients. 84% of them were for generic drugs. CMS names the drug for 2,035 of them, across 19 drugs with 11 or more claims each, at $130,934 in total drug cost. In 2023, CMS named 2,138 claims across 21 drugs.
Dr. Santini Santiago's Part D claims by kind of drug, 2024
- Generic1,837 claims84%
- Brand-name353 claims16%
Dr. Santini Santiago's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Santini Santiago's Part D claims, 2024
- Antibiotics6%132 of 2,190 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1382024: 2,0355%
Drugs named by CMS: 19 in 2024, 21 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Manuel A. Santini Santiago ranks in the 98th percentile for colonoscopy in Medicare
Dr. Santini Santiago accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 360 procedures of colonoscopy by Dr. Santini Santiago, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Santini Santiago ranks in Medicare procedure volume
- Colonoscopy
- 98th percentile360 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 96th percentile318 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Manuel A. Santini Santiago received $826 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Santini Santiago from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Merck Sharp & Dohme Corporation paid the most, $405.
General payments to Dr. Santini Santiago by program year, 2016 to 2025
General payments to Dr. Santini Santiago by kind, 2016 to 2025
- Food and beverage$79096%
- Education$364%
Companies that paid Dr. Santini Santiago the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Manuel A. Santini Santiago's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Manuel A. Santini Santiago
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Manuel A. Santini Santiago's NPI number?
Dr. Manuel A. Santini Santiago's NPI number is 1346243722. It was assigned on May 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Manuel A. Santini Santiago?
Dr. Manuel A. Santini Santiago is a gastroenterologist in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Manuel A. Santini Santiago practice?
Dr. Santini Santiago practices at 371 De Diego Ave, San Juan, PR 00923. Dr. Santini Santiago also practices at 405 De Diego, San Juan, PR 00923. Dr. Santini Santiago's primary practice is Hospital San Francisco in San Juan, Puerto Rico, part of Metro Pavia Health System.
What is Dr. Manuel A. Santini Santiago's office phone number?
The practice phone on file for Dr. Santini Santiago is (787) 767-5100.
What is Dr. Manuel A. Santini Santiago's medical license number?
Dr. Santini Santiago holds Puerto Rico license 6636.
Which hospitals is Dr. Manuel A. Santini Santiago affiliated with?
Dr. Santini Santiago practices at Hospital San Francisco in San Juan, Puerto Rico.
Does Dr. Manuel A. Santini Santiago accept Medicare?
Yes. CMS data shows Dr. Santini Santiago billed Medicare for 66 services in 2024, and Dr. Santini Santiago accepts Medicare assignment.
How many Medicare patients does Dr. Manuel A. Santini Santiago see?
CMS counts 38 Medicare patients who saw Dr. Santini Santiago in 2024, with an average age of 74.
What services does Dr. Manuel A. Santini Santiago bill to Medicare?
In 2024, Dr. Santini Santiago's most billed Medicare services were office visit, established patient (99213) and medicare service (G0500).
What drugs does Dr. Manuel A. Santini Santiago prescribe most?
In 2024 Medicare Part D data, Dr. Santini Santiago's most prescribed drugs by claims were Pantoprazole Sodium, Midazolam HCl and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Manuel A. Santini Santiago received payments from drug or device companies?
CMS Open Payments shows $826 in general payments to Dr. Santini Santiago from 4 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Manuel A. Santini Santiago been practicing?
Dr. Santini Santiago graduated from medical school in 1978, 48 years ago.
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