Margaret Mary Sullivan, MD

Cardiologist in Ennis, Texas · NPI 1134330178

Margaret Sullivan is one of 2 cardiologists practicing in Ennis, Texas. See all cardiologists in Texas. Margaret Sullivan practices with Texas Specialty Physicians.

Registry record (NPPES)

NPI: 1134330178
Type: Type 1 · Individual
Primary taxonomy: Internal Medicine, Cardiovascular Disease · 207RC0000X
Address on file: 802 W Lampasas St
Ennis, TX 75119-4536
(972) 875-4700
Enumerated: May 24, 2007
Record last updated: Aug 16, 2017
License states listed: TX

Medicare (CMS)

Enrollment: Medicare-enrolled in TX
Cardiovascular Disease (Cardiology)
Revalidation due: No date set by CMS

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Part D prescribing
Procedure volumes by CPT code
Group affiliations and colleagues
Full enrollment history

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Practice locations

2201 W Lampasas St
Ennis, TX 75119
(972) 875-0900

More cardiologists in Ennis

Federico Maese, MD

Updated August 2026. Practice locations and specialty come from the CMS Doctors and Clinicians file, the registry record from NPPES, and enrollment from CMS Medicare enrollment files. NPI records are corrected at the source, through NPPES.