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

Elia Cesar El Hajj, MD, PHD

Individual provider Internal Medicine Physician · NPI 1679276752

Elia Cesar El Hajj, MD, PHD is an Internal Medicine Physician in Houston, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2023
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

6550 Fannin St
Houston, TX 77030-2717
Phone: (713) 790-3311
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence W3791 (TX)

Record details

NPI number1679276752
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedMarch 27, 2023
Last updated in NPPESJuly 24, 2026
Certification dateJuly 24, 2026

Other providers in Houston