John Darren Clark, MD

Hospitalist in Keller, Texas · NPI 1528077112

John Clark is the only hospitalist we list in Keller, Texas. See all hospitalists in Texas. John Clark practices with Questcare Hospitalists PLLC and Questcare Matrix PLLC.

Registry record (NPPES)

NPI
1528077112
Type
Type 1 · Individual
Primary taxonomy
Internal Medicine · 207R00000X
Address on file
800 W Randol Mill Rd Ste 2300
Arlington, TX 76012-2504
(866) 202-1032
Enumerated
Aug 5, 2006
Record last updated
May 26, 2009
License states listed
AR, TX

Medicare (CMS)

Enrollment
Medicare-enrolled in TX
Hospitalist
Revalidation due
No date set by CMS

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Practice locations

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.