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

Dr. John Isaac, MBBS

Individual provider Neonatal-Perinatal Medicine Physician · NPI 1427001890

Dr. John Isaac, MBBS is a Neonatal-Perinatal Medicine Physician in San Antonio, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
What do these letters mean?
MBBS — Bachelor of Medicine, Bachelor of Surgery
The medical degree awarded in the UK, India and many Commonwealth countries; equivalent to an MD.

See every abbreviation used in this directory →

Practice location Address checks out

5430 Fredericksburg Rd Ste 508
San Antonio, TX 78229-3539
Phone: (210) 541-8281
Fax: (210) 541-9123
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neonatal-Perinatal Medicine Physician (primary) Taxonomy 2080N0001X · Licence K 6013 (TX)

Record details

NPI number1427001890
Entity typeIndividual (Type 1)
GenderMale
Credentials MBBS
Sole proprietorNo
NPI enumeratedMay 18, 2006
Last updated in NPPESNovember 24, 2021
Certification dateNovember 24, 2021

Other providers in San Antonio