NPPES file of Aug 9, 2026

Cathia Mendez-Vargas, M.D.

Internal Medicine Physician · Austin, TX

Cathia Mendez-Vargas, M.D. is an internal medicine physician with a practice address in Austin, Texas, and NPI 1043485212, issued on Apr 28, 2008. Check the license (Texas P4353, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043485212
Name
Cathia Mendez-Vargas
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
P4353 TX
0055778 CO
55778 CO
17,142 PR
Self-reported in NPPES; status is on the state search
Practice location
1101 Camino LA Costa, Austin, TX 78752
Phone
(512) 478-4939
Enumerated
Apr 28, 2008
Record last updated
Aug 5, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(512) 708-1835
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1101 Camino LA Costa

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nemesis AlvarezCommunity Health Worker1831904937
  2. Estella Alvarez Tanksley, IBCLCLactation Consultant (Non-RN)1417776550
  3. Shadana Bailey, CHWCommunity Health Worker1164237111
  4. Avia BatemanStudent in an Organized Health Care Education/Training Program1255294161
  5. Evelyn BurnsFamily Nurse Practitioner1841748332
  6. Sarah Buttrey, M.D.Family Medicine Physician1922018852

Verify Cathia Mendez-Vargas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P4353
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

220 Medicare Part D claims for 42 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Cathia Mendez-Vargas220
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium23 claims
  2. Gabapentin14 claims
  3. Amlodipine Besylate12 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.

Industry payments in 2024: $21.00

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cathia Mendez-Vargas$21.00
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Cathia Mendez-Vargas among 9,175 internal medicine physician records in Texas

Cathia Mendez-Vargas, 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 2008, is newer than 50% of them.

  • NPI issued2008 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2019 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Bui, MDAustin, TX 787521184601981
  2. Pritesh Gandhi, M.D., M.P.H.Austin, TX 787521003115452
  3. Sriyutha Reddy, MDAustin, TX 787521609221514
  4. Elizabeth Schulwolf, M.D.Austin, TX 787521316977556
  5. Linda Dooley, MDAustin, TX 787511164460036
  6. Yu Yu Khin, M.DAustin, TX 787531275861924
  7. Amirthananthar Krishnarajah, M.D.Austin, TX 787531518994052
  8. Robert Morrison, MD,PH.DAustin, TX 787511407911969

Common questions

What is Cathia Mendez-Vargas, M.D.'s NPI number?

Cathia Mendez-Vargas, M.D.'s National Provider Identifier (NPI) is 1043485212, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Cathia Mendez-Vargas, M.D. located?

The NPPES record lists a practice address at 1101 Camino LA Costa, Austin, TX, 78752. Phone: (512) 478-4939. Providers update this record themselves, so call before visiting.

How can I verify Cathia Mendez-Vargas, M.D.'s license?

NPPES lists Texas license number P4353, 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 Cathia Mendez-Vargas, M.D. prescribe under Medicare Part D?

In 2024, Cathia Mendez-Vargas, M.D. had 220 Medicare Part D claims for 42 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.