Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mr. Dorian R Matzen, DO

Individual provider Family Medicine Physician · NPI 1811337439

Mr. Dorian R Matzen, DO is registered under Family Practice in Amarillo, Texas. Qualified in 2013, 13 years ago. Practices with Southeastern Emergency Physicians LLC, a 786-clinician group and accepts Medicare assignment. Licensed in Kentucky and Texas.

Years since qualifying
13
Licensed in
KY, TX
In the registry since
2013
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4510 Bell St
Amarillo, TX 79109-5714
Phone: (806) 212-4835
Fax: (806) 212-0900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 04927 (KY)
Family Medicine Physician Taxonomy 207Q00000X · Licence Q9436 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence 04927 (KY)
Hospitalist Physician Taxonomy 208M00000X · Licence 04927 (KY)

Record details

NPI number1811337439
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 27, 2013
Last updated in NPPESOctober 5, 2023
Certification dateOctober 5, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Southeastern Emergency Physicians Llc — 786 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients152
Services billed 260 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Southeastern Emergency Physicians LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 786 clinicians in the practice; 12 are shown here.

Other providers in Amarillo