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

Patrick Emerson Day, MD

Individual provider Pediatric Cardiology Physician · NPI 1003376138

Patrick Emerson Day, MD is a Pediatric Medicine in Austin, Texas. Qualified in 2019, 7 years ago. Licensed in Texas.

Years since qualifying
7
Licensed in
TX
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4900 Mueller Blvd
Austin, TX 78723-3079
Phone: (512) 324-0000
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

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence T6547 (TX)

Record details

NPI number1003376138
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2019
Last updated in NPPESJune 4, 2026
Certification dateJune 4, 2026
Mailing address5904 Aylford Ct, Austin, TX 78739-1648

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

Other providers in Austin