NPPES file of Aug 9, 2026

Carolina Arias, M.D.

Nephrology Physician · San Antonio, TX

Carolina Arias, M.D. is a nephrology physician with a practice address in San Antonio, Texas, and NPI 1972761849, issued on May 28, 2008. Check the license (Texas P1619, 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
1972761849
Name
Carolina Arias
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
P1619 TX
Self-reported in NPPES; status is on the state search
Practice location
137 Palo Alto RD, San Antonio, TX 78211
Phone
(210) 212-8622
Enumerated
May 28, 2008
Record last updated
Sep 11, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(210) 212-9197
Medicaid ID
301335101 TX
Medicare enrollment
Enrolled (PECOS I20120705000677); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest nephrology physician records → All 1,159 in Texas → Look up another NPI →

Also registered at 137 Palo Alto RD

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

  1. Esteban Cedillo-Couvert, MDNephrology Physician1407023476
  2. Rosanna Estrada, MSN, ACNS-BC, FNP-BCFamily Nurse Practitioner1366885212
  3. Maribel KampFamily Nurse Practitioner1790385037

Verify Carolina Arias in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P1619    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.2 times the Medicare Part D claims of the average nephrology physician in 2024

3,152 Medicare Part D claims for 521 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Carolina Arias3,152
  2. Specialty average1,465

Most prescribed

  1. Farxiga241 claims
  2. Furosemide223 claims
  3. Vitamin D2150 claims
  4. Losartan Potassium133 claims
  5. Mounjaro130 claims
  6. Carvedilol106 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: $2,246.18

86 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carolina Arias$2,246.18
  2. Specialty average$3,091.37

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

Bills Medicare through one group practice

  1. M Reza Mizani MD PASan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carolina Arias among 1,159 nephrology physician records in Texas

Carolina Arias, M.D. is one of 1,159 nephrology physician records with a practice address in Texas. 89% 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 62% of them.

  • NPI issued2008 · 62% of these records are older, 30% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated2005 · median 2001 among the 954 with a school on file
  • Record last updated2019 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Texas

There are 1,159 nephrology physician records in Texas.

All 1,159 in Texas → Every provider in San Antonio → Nephrology Physician nationwide →

The 8 nephrology physician records with the nearest ZIP codes

  1. Esteban Cedillo-Couvert, MDSan Antonio, TX 782111407023476
  2. Prakash Nancherla, MDSan Antonio, TX 782111811994601
  3. Rajeev Narayan, M.D.San Antonio, TX 782111093805863
  4. Muhammad Abdullah, MDSan Antonio, TX 782121154614832
  5. Ronald Hamner, M.D.San Antonio, TX 782121467427401
  6. Robert Holub, M.D.San Antonio, TX 782121083667893
  7. Edward Lazaga, M.D.San Antonio, TX 782121396729547
  8. Alwin Lopez-ToroSan Antonio, TX 782121962820506

Common questions

What is Carolina Arias, M.D.'s NPI number?

Carolina Arias, M.D.'s National Provider Identifier (NPI) is 1972761849, issued on May 28, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Carolina Arias, M.D. located?

The NPPES record lists a practice address at 137 Palo Alto RD, San Antonio, TX, 78211. Phone: (210) 212-8622. Providers update this record themselves, so call before visiting.

How can I verify Carolina Arias, M.D.'s license?

NPPES lists Texas license number P1619, 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 Carolina Arias, M.D. prescribe under Medicare Part D?

In 2024, Carolina Arias, M.D. had 3,152 Medicare Part D claims for 521 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.