Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1003376138 Individual Practitioner Male Practitioner

Dr. Patrick Emerson Day , MD

Pediatrics - Pediatric Cardiology • Austin, TX

Professional Overview & Biography Verified Profile Summary

Dr. Patrick Day, MD is a registered healthcare professional specializing in Pediatrics - Pediatric Cardiology in Austin, TX. Practice services are available at 4900 MUELLER BLVD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4900 Mueller Blvd

Austin, TX 787233079

Telephone 5123240000
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics - Pediatric Cardiology in Austin, TX

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 29.7 Yrs
State Avg: 27.2 Yrs
Regional Practice Density
23 Specialists

Practicing in Austin, TX (335 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-06-04
Pediatrics - Pediatric Cardiology Primary Specialty

NUCC Taxonomy Code: 2080P0202X

State License TX T6547

A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Jennifer Krena

Nurse Practitioner - Pediatrics

NPI 1003260720
Rachel Schroer , APRN, CPNP-PC, AC

Nurse Practitioner - Pediatrics

NPI 1003622028

Advanced Practice Registered Nurse, CPNPPC, AC

Arturo Vargas , RRT

Respiratory Therapist, Registered - Neonatal/Pediatrics

NPI 1013705805

Registered Respiratory Therapist

Nicole Friedman

Student in an Organized Health Care Education/Training Program

NPI 1013887686
Rebecca Byars , CPNP-AC, PC

Nurse Practitioner - Pediatrics, Critical Care

NPI 1023668860

CPNPAC, PC

Patrick Woodson , LCSW

Social Worker - Clinical

NPI 1023776127

Licensed Clinical Social Worker

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events
📍
Updated Practice Location June 04, 2026

Registered at 4900 MUELLER BLVD, AUSTIN, TX 787233079 (Tel: 5123240000)

📍
Updated Business Mailing Address June 04, 2026

Registered at 5904 AYLFORD CT, AUSTIN, TX 787391648 (Tel: 7137054303)

👤
Provider Name / Credentials Updated June 04, 2026

Recorded as PATRICK DAY, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 04, 2026

Pediatrics (License #T6547 in TX)

NPI Profile Active March 24, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location March 24, 2019

Registered at 1 BAYLOR PLZ # BCM320, HOUSTON, TX 770303411 (Tel: 8328241170)

📍
Updated Business Mailing Address March 24, 2019

Registered at 1137 W BELL ST, HOUSTON, TX 770194101 (Tel: 7137054303)

👤
Provider Name / Credentials Updated March 24, 2019

Recorded as PATRICK DAY

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 24, 2019

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 24, 2019

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Patrick Day. Be the first to share your experience!

Sign in to leave a review for Dr. Patrick Day

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1003376138
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 24, 2019
Last Update: June 04, 2026
Sole Proprietor: No

Mailing Address

5904 Aylford Ct

Austin, TX 787391648

Phone: 7137054303

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.