Marcos Santiago Hernandez, MD
Specialist · San Juan, PR
Marcos Santiago Hernandez, MD is a specialist with a practice address in San Juan, Puerto Rico, and NPI 1619080389, issued on Aug 16, 2006. Check the license (Puerto Rico 80006, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marcos Santiago Hernandez
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 80006 PR
Self-reported in NPPES; status is on the state search - Practice location
- Ashford Medical Center, San Juan, PR 00907
- Phone
- (787) 600-6411
- Enumerated
- Aug 16, 2006
- Record last updated
- Jul 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20050224000546); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 574 in Puerto Rico → Look up another NPI →
Also registered at Ashford Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raul Franceschi, MDOphthalmology Physician1770558595
- Josue Mercado, MDCardiovascular Disease Physician1427095041
Verify Marcos Santiago Hernandez 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 80006Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.3 times the Medicare Part D claims of the average specialist in 2024
7,377 Medicare Part D claims for 479 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium358 claims
- Metoprolol Succinate320 claims
- Simvastatin293 claims
- Synthroid293 claims
- Rosuvastatin Calcium290 claims
- Ezetimibe271 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.
Marcos Santiago Hernandez among 574 specialist records in Puerto Rico
Marcos Santiago Hernandez, MD is one of 574 specialist records with a practice address in Puerto Rico. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 37% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileYes · 26% of these records are
- Graduated1982 · median 1985 among the 147 with a school on file
- Record last updated2026 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
162 specialist records list a practice address in San Juan
They are 162 of the 8,960 NPPES records with a practice address in San Juan, and 574 specialist records in Puerto Rico.
All 574 in Puerto Rico → Every provider in San Juan → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Pedro Beauchamp, M.D.San Juan, PR 009071578695805
- Karim Benitez-Marchand, M.D.San Juan, PR 009071801888490
- Hector Cardona Doble, M.D.San Juan, PR 009071417906751
- Juan GarciaSanturce, PR 009071013988096
- Sandy GonzalezSanturce, PR 009071003946567
- Nilda Hernandez, M.D.Condado, PR 009071871571695
- Gabriel Hernandez Denton, MDSan Juan, PR 009071215903026
- Carlos Ifarraguerri, M.D.San Juan, PR 009071730249624
Common questions
What is Marcos Santiago Hernandez, MD's NPI number?
Marcos Santiago Hernandez, MD's National Provider Identifier (NPI) is 1619080389, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcos Santiago Hernandez, MD located?
The NPPES record lists a practice address at Ashford Medical Center, San Juan, PR, 00907. Phone: (787) 600-6411. Providers update this record themselves, so call before visiting.
How can I verify Marcos Santiago Hernandez, MD's license?
NPPES lists Puerto Rico license number 80006, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Marcos Santiago Hernandez, MD prescribe under Medicare Part D?
In 2024, Marcos Santiago Hernandez, MD had 7,377 Medicare Part D claims for 479 beneficiaries; the average among specialist prescribers was 1,380. 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.