John Michael Therwhanger, MD
Emergency Medicine Physician · Flower Mound, TX
John Michael Therwhanger, MD is an emergency medicine physician with a practice address in Flower Mound, Texas, and NPI 1255727384, issued on Apr 15, 2015. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Michael Therwhanger
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 308026 LA
Self-reported in NPPES; status is on the state search - Practice location
- 2913 Carterton CT, Flower Mound, TX 75022
- Phone
- (214) 564-1525
- Enumerated
- Apr 15, 2015
- Record last updated
- Mar 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Verify John Michael Therwhanger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average emergency medicine physician in 2024
188 Medicare Part D claims for 128 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Cefdinir13 claims
- Ondansetron Odt12 claims
- Hydrocodone-Acetaminophen11 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: $186.14
1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 12,335 providers of this specialty with any payment received $953.79 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.
John Michael Therwhanger among 4,885 emergency medicine physician records in Texas
John Michael Therwhanger, MD 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 2015, is newer than 67% of them.
- NPI issued2015 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2018 · 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).
Emergency Medicine Physician providers in Texas
There are 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Flower Mound → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mark Madenwald, MDFlower Mound, TX 750221932197662
- James Muzzarelli, M.D.Flower Mound, TX 750221811019912
- Benjamin Blake, D.O.Denison, TX 750201104112572
- Lauren Dawson, M.D.Plano, TX 750241780887612
- Zachary Franklin, MDDenison, TX 750201457368938
- Kevin Guan, MDDenison, TX 750201295477271
- Katherine Hurley, M.D.Plano, TX 750241457763559
- Gregory Keelen, DODenison, TX 750201811905227
Common questions
What is John Michael Therwhanger, MD's NPI number?
John Michael Therwhanger, MD's National Provider Identifier (NPI) is 1255727384, issued on Apr 15, 2015. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Therwhanger, MD located?
The NPPES record lists a practice address at 2913 Carterton CT, Flower Mound, TX, 75022. Phone: (214) 564-1525. Providers update this record themselves, so call before visiting.
How can I verify John Michael Therwhanger, MD's license?
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 John Michael Therwhanger, MD prescribe under Medicare Part D?
In 2024, John Michael Therwhanger, MD had 188 Medicare Part D claims for 128 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.