Joel R. Underwood, MD
Anesthesiology Physician · Tyler, TX
Joel R. Underwood, MD is an anesthesiology physician with a practice address in Tyler, Texas, and NPI 1255344610, issued on Aug 15, 2006. Check the license (Texas P4721, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joel R. Underwood
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- P4721 TX
MED-PHYS-LIC-82373 MT
E-4888 AR
Self-reported in NPPES; status is on the state search - Practice location
- 800 E Dawson St, Tyler, TX 75701
- Phone
- (903) 531-4500
- Enumerated
- Aug 15, 2006
- Record last updated
- May 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 309898001 TX
- Medicare enrollment
- Enrolled (PECOS I20200528002768); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 4,635 in Texas → Look up another NPI →
Also registered at 800 E Dawson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joel R. Underwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P4721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospitals and group practices
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
- Gallatin Valley Anesthesia Associates PCBozeman, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Joel R. Underwood among 4,635 anesthesiology physician records in Texas
Joel R. Underwood, MD is one of 4,635 anesthesiology physician records with a practice address in Texas. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2003 · median 2005 among the 3,293 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Texas
There are 4,635 anesthesiology physician records in Texas.
All 4,635 in Texas → Every provider in Tyler → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Cynthia Curry, MDTyler, TX 757011215977558
- William Daniels, MDTyler, TX 757011609816933
- Herbert Gonzalez, MDTyler, TX 757011366415168
- Michael Hendricks, MDTyler, TX 757011396785366
- David Islam, M DTyler, TX 757011225071921
- Asa Lockhart, MDTyler, TX 757011033148481
- Patricia Macha, MDTyler, TX 757011962442400
- Thalia Martin, MDTyler, TX 757011215976501
Common questions
What is Joel R. Underwood, MD's NPI number?
Joel R. Underwood, MD's National Provider Identifier (NPI) is 1255344610, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joel R. Underwood, MD located?
The NPPES record lists a practice address at 800 E Dawson St, Tyler, TX, 75701. Phone: (903) 531-4500. Providers update this record themselves, so call before visiting.
How can I verify Joel R. Underwood, MD's license?
NPPES lists Texas license number P4721, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.