Gregory M Keelen, DO

Emergency medicine physician in Denison, Texas · NPI 1811905227

Gregory Keelen is one of 20 emergency medicine physicians practicing in Denison, Texas. Gregory Keelen practices with Ies Central Texas PLLC and Level One Emergency Physicians LLC.

Registry record (NPPES)

NPI
1811905227
Type
Type 1 · Individual
Primary taxonomy
Emergency Medicine · 207P00000X
Address on file
5016 US-75
Denison, TX 75020
(214) 433-9602
Enumerated
Aug 3, 2006
Record last updated
Jan 22, 2024
License states listed
TX

Medicare (CMS)

Enrollment
Medicare-enrolled in OK, TX
Emergency Medicine
Revalidation due
No date set by CMS

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Practice locations

More emergency medicine physicians in Denison

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.