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

Mary Karen Pena, MD

Individual provider Neurology Physician · NPI 1386746634

Mary Karen Pena, MD is a Neurology in Humacao, Puerto Rico. Graduated from University of Puerto Rico School of Medicine in 1994, 32 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
32
Trained at
University of Puerto Rico School of Medicine
Licensed in
PR
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address may be wrong

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

334 Ave Font Martelo
Humacao, PR 00791
Phone: (787) 852-0886
Fax: (787) 852-0280

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 12866 (PR)

Record details

NPI number1386746634
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 5, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolUNIVERSITY OF PUERTO RICO SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount