Dorian R. Matzen, D.O.
Emergency Medicine Physician · Amarillo, TX
Dorian R. Matzen, D.O. is an emergency medicine physician with a practice address in Amarillo, Texas, and NPI 1811337439, issued on Jun 27, 2013. Check the license (Texas Q9436, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Dorian R. Matzen
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- Q9436 TX
04927 KY
Self-reported in NPPES; status is on the state search - Practice location
- 4510 Bell St, Amarillo, TX 79109
- Phone
- (806) 212-4835
- Enumerated
- Jun 27, 2013
- Record last updated
- Oct 5, 2023
- Fax
- (806) 212-0900
- Medicaid ID
- 360140301 TX
- Medicare enrollment
- Enrolled (PECOS I20210524000998); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 4510 Bell St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Bixenman, APRN, FNP-CFamily Nurse Practitioner1881999340
- Meenakshi Dieguez, M.D.Family Medicine Physician1952573909
- Kevin Fleming, FNP-CFamily Nurse Practitioner1023531191
- Michael Flores, MDFamily Medicine Physician1871591909
- Sydnee Jenschke, FNP-CFamily Nurse Practitioner1063284560
- Daniel Kern, FNPFamily Nurse Practitioner1578921847
Verify Dorian R. Matzen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q9436Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average emergency medicine physician in 2024
207 Medicare Part D claims for 129 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin28 claims
- Dexamethasone21 claims
- Albuterol Sulfate Hfa18 claims
- Ibuprofen15 claims
- Methocarbamol14 claims
- Prednisone13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Concord Company OF Tennessee PLLCCarrollton, KY
- Southeastern Emergency Physicians LLCCampbellsville, KY
- Yalinie Medics LLCBarbourville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dorian R. Matzen among 4,885 emergency medicine physician records in Texas
Dorian R. Matzen, 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 2013, is newer than 59% of them.
- NPI issued2013 · 59% of these records are older, 37% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2013 · median 2013 among the 2,779 with a school on file
- Record last updated2023 · 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 Amarillo → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Aaron Bassett, D.O.Amarillo, TX 791091841451259
- Zuri Goss, M.D.Amarillo, TX 791091992965339
- Thomas Mercado, M.D.Amarillo, TX 791091750519286
- Darrell Morgan, M.D.Amarillo, TX 791091235210121
- Kelly Turner, MDAmarillo, TX 791101700808243
- Timothy Revell, MDAmarillo, TX 791071477735322
- Mike Berry, M.D.Amarillo, TX 791061033485453
- Pedro Calles, DOAmarillo, TX 791061174101471
Common questions
What is Dorian R. Matzen, D.O.'s NPI number?
Dorian R. Matzen, D.O.'s National Provider Identifier (NPI) is 1811337439, issued on Jun 27, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Dorian R. Matzen, D.O. located?
The NPPES record lists a practice address at 4510 Bell St, Amarillo, TX, 79109. Phone: (806) 212-4835. Providers update this record themselves, so call before visiting.
How can I verify Dorian R. Matzen, D.O.'s license?
NPPES lists Texas license number Q9436, 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 Dorian R. Matzen, D.O. prescribe under Medicare Part D?
In 2024, Dorian R. Matzen, D.O. had 207 Medicare Part D claims for 129 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Dorian R. Matzen, D.O.'s MIPS final score?
The 2023 MIPS final score is 80.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.