Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Charles H Machell, MD

Individual provider Clinical Cardiac Electrophysiology Physician · NPI 1245230507

Charles H Machell, MD is a Cardiac Electrophysiology in San Antonio, Texas. Graduated from University of Texas Medical Branch at Galveston in 1980, 46 years ago. Practices with Christus Trinity Clinic, a 1,531-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
46
Trained at
University of Texas Medical Branch at Galveston
Licensed in
TX
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6800 Ih 10 W Ste 350
San Antonio, TX 78201-2038
Phone: (210) 615-0494
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 707 E Marshall Ave, Longview, TX 75601-5545 — (903) 315-5400
  • 703 E Marshall Ave Ste 5007, Longview, TX 75601-5554 — (903) 315-5400
  • 4604 Ne Stallings Dr, Nacogdoches, TX 75965-1608 — (903) 315-4880

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence F6894 (TX)

Record details

NPI number1245230507
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 28, 2005
Last updated in NPPESJuly 16, 2025
Certification dateJuly 16, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 1980 (46 years in practice)
Group practice Christus Trinity Clinic — 1531 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations10 on file with Medicare

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