Tharren Charles Duffy, D.O.
Emergency Medicine Physician · Tyler, TX
Tharren Charles Duffy, D.O. is an emergency medicine physician with a practice address in Tyler, Texas, and NPI 1508027020, issued on Jun 18, 2008. Check the license (Texas P1292, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Tharren Charles Duffy
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- P1292 TX
5101017607 MI
Self-reported in NPPES; status is on the state search - Practice location
- 800 E Dawson St, Tyler, TX 75701
- Phone
- (903) 593-8441
- Enumerated
- Jun 18, 2008
- Record last updated
- Dec 10, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid IDs
- 296518802 TX
296518805 TX
296518803 TX
296518806 TX - Medicare enrollment
- Enrolled (PECOS I20120511000421); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 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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- Kashif Alauddin, M.D.Internal Medicine Physician1659506509
Verify Tharren Charles Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P1292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average emergency medicine physician in 2024
751 Medicare Part D claims for 387 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 107 claims were for opioids.
Most prescribed
- Ondansetron Odt107 claims
- Naproxen97 claims
- Tramadol Hcl63 claims
- Prednisone44 claims
- Hydrocodone-Acetaminophen37 claims
- Cyclobenzaprine Hcl34 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
- Texas Medicine Resources, LLPPlano, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tharren Charles Duffy among 4,885 emergency medicine physician records in Texas
Tharren Charles Duffy, D.O. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 41% of them.
- NPI issued2008 · 41% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2008 · median 2013 among the 2,779 with a school on file
- Record last updated2013 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 emergency medicine physician records list a practice address in Tyler
They are 86 of the 5,531 NPPES records with a practice address in Tyler, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Tyler → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mark Anderson, MDTyler, TX 757011346289055
- Daniel Baber, MDTyler, TX 757011538112024
- Martin Baum, MDTyler, TX 757011508805755
- Robert CreathTyler, TX 757011972542587
- Christopher Diaz, M.D.Tyler, TX 757011376530188
- Luis Haro, MDTyler, TX 757011093794109
- Bradley King, MDTyler, TX 757011639118367
- Colin Marino, MDTyler, TX 757011578519849
Common questions
What is Tharren Charles Duffy, D.O.'s NPI number?
Tharren Charles Duffy, D.O.'s National Provider Identifier (NPI) is 1508027020, issued on Jun 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Tharren Charles Duffy, D.O. located?
The NPPES record lists a practice address at 800 E Dawson St, Tyler, TX, 75701. Phone: (903) 593-8441. Providers update this record themselves, so call before visiting.
How can I verify Tharren Charles Duffy, D.O.'s license?
NPPES lists Texas license number P1292, 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 Tharren Charles Duffy, D.O. prescribe under Medicare Part D?
In 2024, Tharren Charles Duffy, D.O. had 751 Medicare Part D claims for 387 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.