Trina Evyan Dorrah, M.D.
Internal Medicine Physician · Round Rock, TX
Trina Evyan Dorrah, M.D. is an internal medicine physician with a practice address in Round Rock, Texas, and NPI 1326104183, issued on Dec 28, 2006. Check the license (Texas N2648, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Trina Evyan Dorrah
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- N2648 TX
Self-reported in NPPES; status is on the state search - Practice location
- 300 University Blvd, Round Rock, TX 78665
- Phone
- (512) 509-0100
- Enumerated
- Dec 28, 2006
- Record last updated
- Jan 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090327000134); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 300 University Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Albert, MDEmergency Medicine Physician1780241638
- Torey AllingEmergency Medicine Physician1871121814
- Victoriano AquinoPhysician Assistant1750919742
- Rachel Arffa, MDOtolaryngology Physician1316268410
- Danielle Arnold, MDPediatrics Physician1114293834
- Joseph Ayoub, M.D.Diagnostic Radiology Physician1588844609
Verify Trina Evyan Dorrah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N2648Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
182 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Pantoprazole Sodium18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Scott And White ClinicTemple, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Trina Evyan Dorrah among 9,175 internal medicine physician records in Texas
Trina Evyan Dorrah, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2004 among the 6,088 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 internal medicine physician records list a practice address in Round Rock
They are 63 of the 3,815 NPPES records with a practice address in Round Rock, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Round Rock → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ashraf Anani, M.D.Round Rock, TX 786651629041710
- Brian Anderson, D.O.Round Rock, TX 786651598886954
- Kendall Britt, M.D.Round Rock, TX 786651932138567
- Satya Sree Chalasani, M.D.Round Rock, TX 786651346408325
- Nilanjana Dasgupta, M.D.Round Rock, TX 786651598703084
- Robyn Fader, MDRound Rock, TX 786651609846781
- Christopher Farmer, M.D.Round Rock, TX 786651619136462
- Tapasdip Gajjar, MDRound Rock, TX 786651437129707
Common questions
What is Trina Evyan Dorrah, M.D.'s NPI number?
Trina Evyan Dorrah, M.D.'s National Provider Identifier (NPI) is 1326104183, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Trina Evyan Dorrah, M.D. located?
The NPPES record lists a practice address at 300 University Blvd, Round Rock, TX, 78665. Phone: (512) 509-0100. Providers update this record themselves, so call before visiting.
How can I verify Trina Evyan Dorrah, M.D.'s license?
NPPES lists Texas license number N2648, 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.
How much does Trina Evyan Dorrah, M.D. prescribe under Medicare Part D?
In 2024, Trina Evyan Dorrah, M.D. had 182 Medicare Part D claims for 67 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.