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J. Marcus Downs is one of 34 colorectal surgeons practicing in Dallas, Texas .
J. Marcus Downs practices with Texas Oncology PA.
Registry record (NPPES)
NPI
1811922610
Type
Type 1 · Individual
Primary taxonomy
Colon & Rectal Surgery · 208C00000X
Address on file
8315 Walnut Hill Ln Dallas, TX 75231-4218 (214) 363-6123
Enumerated
Jul 11, 2006
Record last updated
Mar 30, 2021
License states listed
TX
Medicare (CMS)
Enrollment
Medicare-enrolled in TXColorectal Surgery (Proctology)
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
7777 Forest Ln Suite C707
Dallas , TX 75230
(972) 566-3000
8315 Walnut Hill Ln Suite 220
Dallas , TX 75231
(214) 363-6123
PO Box Suite 911242
Dallas , TX 75391
More colorectal surgeons in Dallas
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.
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