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

Dr. Juan Castaner, MD

Individual provider Maternal & Fetal Medicine Physician · NPI 1669477642

Dr. Juan Castaner, MD is an Obstetrics/Gynecology in San Juan, Puerto Rico. Graduated from Albany Medical College of Union University in 1987, 39 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
39
Trained at
Albany Medical College of Union University
Licensed in
PR
In the registry since
2005
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.

29 Washington St Ste 207 Ashford Medical Center
San Juan, PR 00907-1509
Phone: (787) 725-6750
Fax: (787) 723-8854

Specialties & licences

Maternal & Fetal Medicine Physician (primary) Taxonomy 207VM0101X · Licence 11250 (PR)

Record details

NPI number1669477642
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 16, 2005
Last updated in NPPESDecember 1, 2010

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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