Thomas Charlton Diaz, DO
Family Medicine Physician · Trophy Club, TX
Thomas Charlton Diaz, DO is a family medicine physician with a practice address in Trophy Club, Texas, and NPI 1265068118, issued on Mar 22, 2020. Check the license (Texas T4345, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Charlton Diaz
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- T4345 TX
Self-reported in NPPES; status is on the state search - Practice location
- 945 Trophy Club Dr, Trophy Club, TX 76262
- Phone
- (817) 430-9111
- Enumerated
- Mar 22, 2020
- Record last updated
- Mar 23, 2026
- Fax
- (817) 430-8911
- Medicare enrollment
- Enrolled (PECOS I20230612003191); accepts Medicare assignment
- Medical or professional school
- William Carey University College Of Osteopathic Medicine, 2020
- Entity
- Type 1 · individual
Also registered at 945 Trophy Club Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carol Addy, PAPhysician Assistant1356472559
- David Yi, MDFamily Medicine Physician1700899044
Verify Thomas Charlton Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license T4345Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average family medicine physician in 2024
1,210 Medicare Part D claims for 104 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 40 claims were for opioids.
Most prescribed
- Amlodipine Besylate77 claims
- Losartan Potassium77 claims
- Atorvastatin Calcium74 claims
- Levothyroxine Sodium45 claims
- Tramadol Hcl39 claims
- Quetiapine Fumarate38 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.
Industry payments in 2024: $83.36
1 payment: food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Trophy Club Family Medicine PATrophy Club, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 family medicine physician records list a practice address in Trophy Club
They are 3 of the 104 NPPES records with a practice address in Trophy Club, and 11,119 family medicine physician records in Texas.
All 3 in Trophy Club → All 11,119 in Texas → Every provider in Trophy Club →
Other family medicine physician records in Texas
- Srinivasa Aaluri, MDEl Paso, TX1265566509
- Maira Aamir, MDShenandoah, TX1932660859
- Fakhrudin Aaseemah Mohamed, M.DAllen, TX1952782518
- So Abad, MDWichita Falls, TX1184624694
- Yoseph AbadiRichardson, TX1700742640
- Marcus Abadie, M.D.Athens, TX1104821107
- Montserrat Abadie Sole, M.D.Fort Worth, TX1245437078
- Sarah Abang-Hayes, M.D.San Antonio, TX1326244724
- Ahmad Abazid, M.DRichardson, TX1013238401
- Syed Abbas, M.D.Houston, TX1821267477
Common questions
What is Thomas Charlton Diaz, DO's NPI number?
Thomas Charlton Diaz, DO's National Provider Identifier (NPI) is 1265068118, issued on Mar 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Charlton Diaz, DO located?
The NPPES record lists a practice address at 945 Trophy Club Dr, Trophy Club, TX, 76262. Phone: (817) 430-9111. Providers update this record themselves, so call before visiting.
How can I verify Thomas Charlton Diaz, DO's license?
NPPES lists Texas license number T4345, 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 Thomas Charlton Diaz, DO prescribe under Medicare Part D?
In 2024, Thomas Charlton Diaz, DO had 1,210 Medicare Part D claims for 104 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.