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

Dr. William K Deschner, MD

Individual provider Gastroenterology Physician · NPI 1023003563

Dr. William K Deschner, MD is a Gastroenterology in San Marcos, Texas. Graduated from Baylor College of Medicine in 1983, 43 years ago. Practices with Texas Digestive Disease Consultants, PLLC, a 615-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
43
Trained at
Baylor College of Medicine
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

1305 Wonder World Dr Ste 200
San Marcos, TX 78666-7546
Phone: (512) 754-8676
Fax: (512) 754-8680
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G4977 (TX)

Record details

NPI number1023003563
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 12, 2005
Last updated in NPPESFebruary 16, 2017
Mailing addressPo Box 35629, Dallas, TX 75235-0629

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Texas Digestive Disease Consultants, Pllc — 615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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