NPI age
20 years
Enumerated 2005-08-26
● Active
Type 1 · Individual
John M Sullivan, MD
Sullivan is 1 of 7 surgery providers in Ennis and 1 of 3028 in Texas.
Primary specialty
Surgery
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2010-01-13
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 3028 active surgery providers in Texas.
NPI age
20 years
↑ 2 yr above median (18 yr)
State licenses
1 state
11% of peers hold multiple states
Subspecialties
1
In the 27% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-08Enumerated in NPPES
2005
2026
Where they practice
Practice location
802 W Lampasas St
Ennis, TX 751194500
Mailing address
802 W Lampasas St
Ennis, TX 751194500
Specialties
-
Surgery PrimaryA general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and...
-
SurgeryA surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 138206115 | |
| 01 (TX) | 8A7520 | MEDICARE PTAN |
Practice context
Part of a multi-provider practice. 12 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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