NPPES file of Aug 9, 2026

Alfonso Chavez, MD

Nephrology Physician · El Paso, TX

Alfonso Chavez, MD is a nephrology physician with a practice address in El Paso, Texas, and NPI 1356326987, issued on Dec 6, 2005. Check the license (Texas E9573, 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
1356326987
Name
Alfonso Chavez
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
E9573 TX
Self-reported in NPPES; status is on the state search
Practice location
1527 Brown St Ste A, El Paso, TX 79902
Phone
(915) 532-2693
Enumerated
Dec 6, 2005
Record last updated
Mar 17, 2023
Fax
(915) 532-8985
Medicaid ID
P084G6718 TX
Medicare enrollment
Enrolled (PECOS I20100721000320); accepts Medicare assignment
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.
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Also registered at 1527 Brown St Ste A

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

  1. Denisse CastillejosSpeech-Language Pathologist1194065953
  2. Amanda RamirezSpeech-Language Pathologist1669998928

Verify Alfonso Chavez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license E9573
    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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2.3 times the Medicare Part D claims of the average nephrology physician in 2024

3,436 Medicare Part D claims for 279 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 34 claims were for opioids.

  1. Alfonso Chavez3,436
  2. Specialty average1,465

Most prescribed

  1. Furosemide142 claims
  2. Levothyroxine Sodium139 claims
  3. Clopidogrel86 claims
  4. Calcium Acetate81 claims
  5. Lisinopril81 claims
  6. Alprazolam79 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: $223.42

11 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, 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. Alfonso Chavez$223.42
  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.

Alfonso Chavez among 1,159 nephrology physician records in Texas

Alfonso Chavez, MD 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1971 · median 2001 among the 954 with a school on file
  • Record last updated2023 · 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.

The 8 nephrology physician records with the nearest ZIP codes

  1. Dionicio AlvarezEl Paso, TX 799021275504490
  2. Diane Demick, MDEl Paso, TX 799021770553281
  3. Melvin Fox, M.D.El Paso, TX 799021700884624
  4. Alfredo Gonzalez, MDEl Paso, TX 799021992776116
  5. Ramesh Komaragiri, M.D.El Paso, TX 799021265534010
  6. Ileana Martinez, M.D.El Paso, TX 799021326032913
  7. Fernando Moran, M.DEl Paso, TX 799021619321924
  8. Patricio Pazmino, PHD, MDEl Paso, TX 799021336131325

Common questions

What is Alfonso Chavez, MD's NPI number?

Alfonso Chavez, MD's National Provider Identifier (NPI) is 1356326987, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Alfonso Chavez, MD located?

The NPPES record lists a practice address at 1527 Brown St Ste A, El Paso, TX, 79902. Phone: (915) 532-2693. Providers update this record themselves, so call before visiting.

How can I verify Alfonso Chavez, MD's license?

NPPES lists Texas license number E9573, 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 Alfonso Chavez, MD prescribe under Medicare Part D?

In 2024, Alfonso Chavez, MD had 3,436 Medicare Part D claims for 279 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.

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.