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

Dr. Ross Neal Thormahlen, MD

Individual provider Anesthesiology Physician · NPI 1326213158

Dr. Ross Neal Thormahlen, MD is an Anesthesiology in San Antonio, Texas. Graduated from University of Texas Southwestern Medical School at Dallas in 2004, 22 years ago. Practices with Allen Anesthesia Associates, a 92-clinician group and accepts Medicare assignment. Licensed in North Carolina and Texas.

Years since qualifying
22
Trained at
University of Texas Southwestern Medical School at Dallas
Licensed in
NC, TX
In the registry since
2008
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

4242 Medical Dr Ste 3100
San Antonio, TX 78229-5640
Phone: (210) 477-9555
Fax: (210) 614-2180
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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 N7500 (TX)
Anesthesiology Physician Taxonomy 207L00000X · Licence 2007-01955 (NC)

Record details

NPI number1326213158
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 23, 2008
Last updated in NPPESApril 11, 2013

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 2004 (22 years in practice)
Group practice Allen Anesthesia Associates — 92 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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