Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Aristotle Almazar Callado, DO

Individual provider Emergency Medicine Physician · NPI 1144843970

Aristotle Almazar Callado, DO is registered under Family Practice in Sherman, Texas. Qualified in 2020, 6 years ago. Practices with Acs Primary Care Physicians Southwest PA, a 188-clinician group and accepts Medicare assignment. Licensed in Oklahoma and Texas.

Years since qualifying
6
Licensed in
OK, TX
In the registry since
2020
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

809 Gallagher Dr Ste D
Sherman, TX 75090-1754
Phone: (903) 771-2846
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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 8009 (OK)
Emergency Medicine Physician Taxonomy 207P00000X · Licence T2568 (TX)
Family Medicine Physician Taxonomy 207Q00000X · Licence T2568 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence BP10071685 (TX)

Record details

NPI number1144843970
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 27, 2020
Last updated in NPPESNovember 7, 2024
Certification dateNovember 7, 2024

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Acs Primary Care Physicians Southwest Pa — 188 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients588
Services billed 770 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

  • Paris Regional Medical Center Hospital · Paris, TX
  • Texoma Medical Center Hospital · Denison, TX
  • Ut Health East Texas Athens Hospital Hospital · Athens, TX

Colleagues at Acs Primary Care Physicians Southwest PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 188 clinicians in the practice; 12 are shown here.

Other providers in Sherman