Marc Demyun, MD

General practitioner in Greenville, Texas · NPI 1952366684

Marc Demyun is the only general practitioner we list in Greenville, Texas. See all general practitioners in Texas. Marc Demyun practices with Hospitalist Medicine Physicians Of Texas - Burnet PLLC, Hunt Memorial Hospital District, and Precision Health Clinic PLLC and 1 more group.

Registry record (NPPES)

NPI: 1952366684
Type: Type 1 · Individual
Primary taxonomy: Internal Medicine · 207R00000X
Address on file: 4001 Ridgecrest Rd Ste A
Greenville, TX 75402-6143
(903) 453-2850
Enumerated: Apr 18, 2006
Record last updated: Sep 8, 2025
License states listed: MS, TX

Medicare (CMS)

Enrollment: Medicare-enrolled in TX
General Practice
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

4001 Ridgecrest Rd Suite A
Greenville, TX 75402
(903) 453-2850
5930 Lyndon B Johnson Fwy Suite 380
Dallas, TX 75240
(214) 351-2299
5016 S US Hwy 75 Texoma Medical Center
Denison, TX 75020
(903) 416-4000
5521 Bellaire Dr S Suite 110
Fort Worth, TX 76109
(817) 926-9642

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.