Gregor Massoth
Anesthesiology Physician · Dallas, TX
Gregor Massoth is an anesthesiology physician with a practice address in Dallas, Texas, and NPI 1235081084, issued on Feb 13, 2026. Check the license (Texas 48842, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregor Massoth
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 48842 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5323 Harry Hines Blvd Stop 7200, Dallas, TX 75390
- Phone
- (214) 648-5461
- Enumerated
- Feb 13, 2026
- Record last updated
- Feb 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20260330001656); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 4,635 in Texas → Look up another NPI →
Also registered at 5323 Harry Hines Blvd Stop 7200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregor Massoth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license 48842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- University OF Texas Southwestern Medical Center AT DallasDallas, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregor Massoth among 4,635 anesthesiology physician records in Texas
Gregor Massoth 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 2026, is newer than over 99% of them.
- NPI issued2026 · over 99% of these records are older, 0% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2013 · median 2005 among the 3,293 with a school on file
- Record last updated2026 · 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).
1,392 anesthesiology physician records list a practice address in Dallas
They are 1,392 of the 36,304 NPPES records with a practice address in Dallas, and 4,635 anesthesiology physician records in Texas.
All 4,635 in Texas → Every provider in Dallas → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Carl Adkins, MDDallas, TX 753901063474120
- Kapil Anand, MDDallas, TX 753901558335166
- Hsi Chiao, MDDallas, TX 753901003878166
- Jayne Coleman, MDDallas, TX 753901215999370
- Margaret Craig, MDDallas, TX 753901316909476
- Linda Douning Olivo, MDDallas, TX 753901104888262
- Pamela Fox, MDDallas, TX 753901750359386
- Kevin Gingrich, M.D.Dallas, TX 753901104813088
Common questions
What is Gregor Massoth's NPI number?
Gregor Massoth's National Provider Identifier (NPI) is 1235081084, issued on Feb 13, 2026. An NPI identifies a provider in billing; it is not a license.
Where is Gregor Massoth located?
The NPPES record lists a practice address at 5323 Harry Hines Blvd Stop 7200, Dallas, TX, 75390. Phone: (214) 648-5461. Providers update this record themselves, so call before visiting.
How can I verify Gregor Massoth's license?
NPPES lists Texas license number 48842, 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.