1. Home
  2. Directory
  3. Texas
  4. Ennis
  5. Internal Medicine
  6. NPI Profile

MEG SULLIVAN, M.D., PA
NPI 1083924005
Internal Medicine in Ennis, TX

Active since October 08, 2010
802 W LAMPASAS ST, ENNIS, TX 75119(972) 875-4700(972) 878-4527 Get Directions Write a Review

NPPES record last updated: October 8, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Meg Sullivan, M.d., Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MEG SULLIVAN, M.D., PA (NPI 1083924005) is a healthcare organization registered as an internal medicine in Ennis, Texas and active in the NPI registry since October 2010. The organization lists Meg Sullivan, President, as its authorized official.

NPPES Registry Identity

NPI1083924005
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMEG SULLIVAN, M.D., PA
Location Address802 W LAMPASAS STEnnis, TX 75119-4536
Mailing Address802 W Lampasas StEnnis, TX 75119-4536 · (972) 875-4700 · Fax (972) 878-4527
Phone(972) 875-4700
Fax(972) 878-4527
Organization SubpartNo
Authorized OfficialMeg SullivanPresident · (972) 875-4700
Enumeration DateOctober 8, 2010
✔ NPI 1083924005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · N5421
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
802 W LAMPASAS ST, Ennis, TX 75119
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Meg Sullivan, M.d., Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Meg Sullivan, M.D., PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Margaret Sullivan, MD
Cardiovascular Disease (Cardiology)
NPI 1134330178
802 W LAMPASAS ST
Ennis, TX 75119
(972) 875-4700
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Meg Sullivan, M.D., PA's NPI number?

The NPI number for Meg Sullivan, M.D., PA is 1083924005. It was assigned to this organization in the NPPES registry on October 8, 2010.

Where is Meg Sullivan, M.D., PA located?

Meg Sullivan, M.D., PA is located at 802 W Lampasas St, Ennis, TX 75119. The listed phone number is (972) 875-4700.

What is Meg Sullivan, M.D., PA's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Meg Sullivan, M.D., PA enrolled in Medicare?

Yes. Meg Sullivan, M.D., PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Meg Sullivan, M.D., PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Meg Sullivan, M.D., PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Meg Sullivan, M.D., PA was last updated on October 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.