Dr. David Nathaniel Vera Santiago, MD
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 8,840
- Hospital affiliations
- 2
- Industry payments
- $1,179
- Medical group
- 1
- Practice address
- Carretera 14 Interior Bo Rincon, Cayey, PR 00737-2800
- Practice phone
- Call (787) 434-1700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital Menonita De Cayey - Cayey (Carretera 14 Interior)
Multi-specialty group site · Cayey, Puerto Rico
Find Dr. Vera Santiago's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. David Nathaniel Vera Santiago is an internist in Aibonito, Puerto Rico
Dr. Vera Santiago practices at Hospital Menonita De Cayey - Cayey (Carretera 14 Interior) in Cayey, Puerto Rico.
Dr. Vera Santiago's NPI, 1780105411, was assigned on July 3, 2017. Dr. Vera Santiago holds Puerto Rico license 21920.
- NPI
- 1780105411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103246095
- NPI enumeration date
- July 3, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 434-1700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Nathaniel Vera Santiago practices in Cayey and Aibonito
Dr. Vera Santiago's primary practice is Hospital Menonita De Cayey - Cayey (Carretera 14 Interior), at Carretera 14 Interior Bo Rincon, Cayey, PR 00737-2800. The practice phone is (787) 434-1700. The NPI Registry lists Dr. Vera Santiago's practice address as Bo. Caonillas Carr 726 Calle Jose C Vazquez, Aibonito, PR 00705.
- Hospital Menonita De Cayey - Cayey (Carretera 14 Interior)PrimaryCarretera 14 Interior Bo Rincon, Cayey, PR 00737-2800Phone(787) 434-1700
- NPI Registry addressBo. Caonillas Carr 726 Calle Jose C Vazquez, Aibonito, PR 00705Phone(787) 735-0023
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. David Nathaniel Vera Santiago is affiliated with 3 sites of care and 1 medical group
Dr. Vera Santiago's primary practice is Hospital Menonita De Cayey - Cayey (Carretera 14 Interior) in Cayey, Puerto Rico. Dr. Vera Santiago is also affiliated with Hospital Menonita de Aibonito. The medical group on file is Hospital Menonita Cayey. Dmand AI also links Dr. Vera Santiago to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. David Nathaniel Vera Santiago's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vera Santiago practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital Menonita De Cayey - Cayey (Carretera 14 Interior) | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Nathaniel Vera Santiago is one of 805 internists in Puerto Rico
Internal medicine is Dr. Vera Santiago's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Vera Santiago is licensed in Puerto Rico.
Specialties and state licenses
- Internal medicine, Puerto RicoPrimary
Internists near Dr. Vera Santiago
Counts of internists 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. David Nathaniel Vera Santiago treated 11 Medicare patients in 2024, average age 75
CMS counts 11 Medicare patients who saw Dr. Vera Santiago in 2024. Their average risk score is 2.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Vera Santiago's median patient age at 75, with 48% women.
Dr. Vera 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 75
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Nathaniel Vera Santiago wrote 8,840 Medicare Part D claims in 2024
In 2024, Dr. Vera Santiago wrote 8,840 Medicare Part D claims for 817 patients. 89% of them were for generic drugs. CMS names the drug for 8,195 of them, across 123 drugs with 11 or more claims each, at $306,403 in total drug cost. In 2023, CMS named 12,370 claims across 151 drugs.
Dr. Vera Santiago's Part D claims by kind of drug, 2024
- Generic7,900 claims89%
- Brand-name856 claims10%
- Other84 claims1%
Dr. Vera 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. Vera Santiago's Part D claims, 2024
- Opioids3%222 of 8,840 claims
- Antibiotics2%163 of 8,840 claims
- Antipsychotics, patients 65 and over1%108 of 8,840 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: 12,3702024: 8,19534%
Drugs named by CMS: 123 in 2024, 151 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
How Dr. David Nathaniel Vera Santiago takes part in Medicare
Dr. Vera Santiago accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Nathaniel Vera Santiago received $1,179 in industry payments from 2019 to 2025
CMS Open Payments shows 29 general payments to Dr. Vera Santiago from 9 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $246.
General payments to Dr. Vera Santiago by program year, 2019 to 2025
Companies that paid Dr. Vera Santiago the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David Nathaniel Vera Santiago's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. David Nathaniel Vera Santiago
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What is Dr. David Nathaniel Vera Santiago's NPI number?
Dr. David Nathaniel Vera Santiago's NPI number is 1780105411. It was assigned on July 3, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. David Nathaniel Vera Santiago?
Dr. David Nathaniel Vera Santiago is an internist in Aibonito, Puerto Rico. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Nathaniel Vera Santiago practice?
Dr. Vera Santiago practices at Carretera 14 Interior Bo Rincon, Cayey, PR 00737-2800. Dr. Vera Santiago also practices at Bo. Caonillas Carr 726 Calle Jose C Vazquez, Aibonito, PR 00705. Dr. Vera Santiago's primary practice is Hospital Menonita De Cayey - Cayey (Carretera 14 Interior) in Cayey, Puerto Rico. Dmand AI also links Dr. Vera Santiago to 1 hospital.
What is Dr. David Nathaniel Vera Santiago's office phone number?
The practice phone on file for Dr. Vera Santiago is (787) 434-1700.
What is Dr. David Nathaniel Vera Santiago's medical license number?
Dr. Vera Santiago holds Puerto Rico license 21920.
Which hospitals is Dr. David Nathaniel Vera Santiago affiliated with?
Dr. Vera Santiago is affiliated with Hospital Menonita de Aibonito. Dmand AI links Dr. Vera Santiago to 1 more hospital.
What medical group is Dr. David Nathaniel Vera Santiago part of?
Dr. Vera Santiago is linked to Hospital Menonita Cayey.
Does Dr. David Nathaniel Vera Santiago accept Medicare?
Yes. CMS lists Dr. Vera Santiago as accepting Medicare assignment.
How many Medicare patients does Dr. David Nathaniel Vera Santiago see?
CMS counts 11 Medicare patients who saw Dr. Vera Santiago in 2024, with an average age of 75.
What drugs does Dr. David Nathaniel Vera Santiago prescribe most?
In 2024 Medicare Part D data, Dr. Vera Santiago's most prescribed drugs by claims were Gabapentin, Atorvastatin Calcium and Clonazepam.
Has Dr. David Nathaniel Vera Santiago received payments from drug or device companies?
CMS Open Payments shows $1,179 in general payments to Dr. Vera Santiago from 9 companies from 2019 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. David Nathaniel Vera Santiago been practicing?
Dr. Vera Santiago graduated from medical school in 2016, 10 years ago.
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