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

Mark Anthony Clay, MD

Individual provider Pediatric Cardiology Physician · NPI 1417004136

Mark Anthony Clay, MD is a Pediatric Cardiology Physician in Jefferson, Louisiana. Works from 2 locations. Licensed in Louisiana and Texas.

Licensed in
LA, TX
In the registry since
2007
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1514 Jefferson Hwy
Jefferson, LA 70121-2451
Phone: (770) 289-7336
Fax: (615) 468-4520
Show map & directions

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

Additional practice locations (1)

  • 7777 Forest Ln Ste C300j, Dallas, TX 75230-2604 — (972) 566-2043

Specialties & licences

Pediatric Critical Care Medicine Physician (primary) Taxonomy 2080P0203X · Licence 351496 (LA)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence 351496 (LA)
Pediatric Critical Care Medicine Physician Taxonomy 2080P0203X · Licence N6842 (TX)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence N6842 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence 351496 (LA)

Record details

NPI number1417004136
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2007
Last updated in NPPESJune 25, 2026
Certification dateJune 25, 2026
Mailing address1514 Jefferson Hwy, Jefferson, LA 70121-2451

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