Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Marcos Santiago Hernandez, MD

Individual provider Specialist · NPI 1619080389

Dr. Marcos Santiago Hernandez, MD is an Internal Medicine in San Juan, Puerto Rico. Qualified in 1982, 44 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
44
Licensed in
PR
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address may be wrong

The ZIP code does not match the city and state on this record. Call before visiting.

Ashford Medical Center Oficina 805 Calle Washington
San Juan, PR 00907-1524
Phone: (787) 600-6411

No coordinates on file. Search this address in Google Maps

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 80006 (PR)

Record details

NPI number1619080389
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 16, 2006
Last updated in NPPESJuly 1, 2026
Certification dateJuly 1, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in San Juan