Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Aixa Mercedes Caraballo, MD

Individual provider Internal Medicine Physician · NPI 1710198221

Dr. Aixa Mercedes Caraballo, MD practises Internal Medicine in Austin, Texas. Qualified in 2001, 25 years ago. Practices with Ch Specialty Services Tx PLLC, a 101-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Texas.

Years since qualifying
25
Licensed in
MA, TX
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1911 Hether St
Austin, TX 78704-3319 Not confirmed with CMS for 10 years — call before visiting
Phone: (857) 523-0446
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence P2604 (TX)
Hospitalist Physician Taxonomy 208M00000X · Licence 232142 (MA)

Record details

NPI number1710198221
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 25, 2007
Last updated in NPPESFebruary 4, 2016

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Ch Specialty Services Tx Pllc — 101 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 patients22
Services billed 54 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Ch Specialty Services Tx PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 101 clinicians in the practice; 12 are shown here.

Other providers in Austin