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

Gregory W. Ashton, MD

Individual provider Anesthesiology Physician · NPI 1740609528

Gregory W. Ashton, MD is an Anesthesiology in San Angelo, Texas. Graduated from University of Texas Medical School at San Antonio in 2014, 12 years ago. Practices with Shannon Clinic, a 547-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Texas.

Years since qualifying
12
Trained at
University of Texas Medical School at San Antonio
Licensed in
MA, TX
In the registry since
2014
Specialties on file
2
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

120 E Harris Ave
San Angelo, TX 76903-5904
Phone: (325) 653-6741
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 259894 (MA)
Anesthesiology Physician Taxonomy 207L00000X · Licence R1695 (TX)

Record details

NPI number1740609528
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 9, 2014
Last updated in NPPESMarch 29, 2018
Mailing addressPo Box 22000, San Angelo, TX 76902-7200

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 2014 (12 years in practice)
Group practice Shannon Clinic — 547 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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