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

Individual provider Medical Oncology Physician · NPI 1265459168

Dr. Ronald L Drengler, MD is a Medical Oncology in San Antonio, Texas. Qualified in 1988, 38 years ago. Practices with South Texas Oncology and Hematology, PLLC, a 39-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
38
Licensed in
TX
In the registry since
2006
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

4383 Medical Dr
San Antonio, TX 78229-3307
Phone: (210) 593-5700
Fax: (210) 593-5992
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence J4091 (TX)

Record details

NPI number1265459168
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 16, 2006
Last updated in NPPESJuly 11, 2013

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice South Texas Oncology And Hematology, Pllc — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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