Aixa Mercedes Caraballo, M.D.
Internal Medicine Physician · Austin, TX
Aixa Mercedes Caraballo, M.D. is an internal medicine physician with a practice address in Austin, Texas, and NPI 1710198221, issued on May 25, 2007. Check the license (Texas P2604, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Aixa Mercedes Caraballo
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- P2604 TX
232142 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1911 Hether St, Austin, TX 78704
- Phone
- (857) 523-0446
- Enumerated
- May 25, 2007
- Record last updated
- Feb 4, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120607000694); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Verify Aixa Mercedes Caraballo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P2604Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
33 Medicare Part D claims for 16 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through 2 group practices
- CH Specialty Services TX PLLCCollege Sta, TX
- Curana Health Medical Group LLCAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aixa Mercedes Caraballo among 9,175 internal medicine physician records in Texas
Aixa Mercedes Caraballo, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2004 among the 6,088 with a school on file
- Record last updated2016 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
606 internal medicine physician records list a practice address in Austin
They are 606 of the 26,585 NPPES records with a practice address in Austin, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Austin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Margaret Clark, M.D.Austin, TX 787041902915119
- Daniel Crowe, MDAustin, TX 787041255325015
- Hien Duong, DOAustin, TX 787041366479883
- Sunita Gaur, MDAustin, TX 787041598770653
- Carlos Gray, M.D.Austin, TX 787041881671352
- Louis Hine, MDAustin, TX 787041699781930
- William Inman, MDAustin, TX 787041437247145
- Sharon Itaya, MDAustin, TX 787041386698850
Common questions
What is Aixa Mercedes Caraballo, M.D.'s NPI number?
Aixa Mercedes Caraballo, M.D.'s National Provider Identifier (NPI) is 1710198221, issued on May 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Aixa Mercedes Caraballo, M.D. located?
The NPPES record lists a practice address at 1911 Hether St, Austin, TX, 78704. Phone: (857) 523-0446. Providers update this record themselves, so call before visiting.
How can I verify Aixa Mercedes Caraballo, M.D.'s license?
NPPES lists Texas license number P2604, 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 Aixa Mercedes Caraballo, M.D. prescribe under Medicare Part D?
In 2024, Aixa Mercedes Caraballo, M.D. had 33 Medicare Part D claims for 16 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.