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

Dr. Joel R Underwood, MD

Individual provider Anesthesiology Physician · NPI 1255344610

Dr. Joel R Underwood, MD practises Anesthesiology in Tyler, Texas. Qualified in 2003, 23 years ago. Practices with Billings Clinic, a 805-clinician group and accepts Medicare assignment. Licensed in Arkansas, Montana and Texas.

Years since qualifying
23
Licensed in
AR, MT, TX
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

800 E Dawson St
Tyler, TX 75701-2036
Phone: (903) 531-4500
Show map & directions

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MED-PHYS-LIC-82373 (MT)
Anesthesiology Physician Taxonomy 207L00000X · Licence E-4888 (AR)
Anesthesiology Physician Taxonomy 207L00000X · Licence P4721 (TX)

Record details

NPI number1255344610
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 15, 2006
Last updated in NPPESMay 26, 2020
Certification dateMay 26, 2020

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Billings Clinic — 805 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients256
Services billed 304 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Billings Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 805 clinicians in the practice; 12 are shown here.

Other providers in Tyler