NPPES file of Aug 9, 2026

Alfredo Siller, M.D.

Dermatology Physician · Edinburg, TX

Alfredo Siller, M.D. is a dermatology physician with a practice address in Edinburg, Texas, and NPI 1689133555, issued on Mar 19, 2019. Check the license (Texas 57790, 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
1689133555
Name
Alfredo Siller
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
57790 TX
35.150933 OH
Self-reported in NPPES; status is on the state search
Practice location
4937 S. Jackson RD., Edinburg, TX 78539
Phone
(956) 627-0232
Enumerated
Mar 19, 2019
Record last updated
Nov 5, 2025
Fax
(956) 338-5668
Medicare enrollment
Enrolled (PECOS I20240614001981); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2019
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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Verify Alfredo Siller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license 57790
    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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68% fewer Medicare Part D claims than the average dermatology physician in 2024

257 Medicare Part D claims for 164 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 120 claims were for opioids.

  1. Alfredo Siller257
  2. Specialty average797

Most prescribed

  1. Acetaminophen-Codeine100 claims
  2. Doxycycline Hyclate35 claims
  3. Tramadol Hcl19 claims
  4. Ketoconazole13 claims
  5. Triamcinolone Acetonide11 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: $829.21

8 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alfredo Siller$829.21
  2. Specialty average$8,544.61

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

Bills Medicare through 2 group practices

  1. Brett Coldiron MDCincinnati, OH
  2. Siller Dermatology And Dermatologic Surgery PLLCEdinburg, TX

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

Alfredo Siller among 1,172 dermatology physician records in Texas

Alfredo Siller, M.D. is one of 1,172 dermatology physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 11% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2019 · median 2008 among the 926 with a school on file
  • Record last updated2025 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Texas

There are 1,172 dermatology physician records in Texas.

The 8 dermatology physician records with the nearest ZIP codes

  1. Zeeshan Afzal, M.D.Edinburg, TX 785391962768507
  2. Chloe Fernandez, DOEdinburg, TX 785391912649690
  3. Giselle Guerrero, MDEdinburg, TX 785391013599612
  4. Norma Magee, MDEdinburg, TX 785391093906620
  5. Stephen Schwartz, M.D.Harlingen, TX 785501457342412
  6. Maria De La Luz Villegas, MDHarlingen, TX 785501366622938
  7. Jay Walther, MDHarlingen, TX 785501245230655
  8. Michael Hohnadel, DOBrownsville, TX 785201477646537

Common questions

What is Alfredo Siller, M.D.'s NPI number?

Alfredo Siller, M.D.'s National Provider Identifier (NPI) is 1689133555, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alfredo Siller, M.D. located?

The NPPES record lists a practice address at 4937 S. Jackson RD., Edinburg, TX, 78539. Phone: (956) 627-0232. Providers update this record themselves, so call before visiting.

How can I verify Alfredo Siller, M.D.'s license?

NPPES lists Texas license number 57790, 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 Alfredo Siller, M.D. prescribe under Medicare Part D?

In 2024, Alfredo Siller, M.D. had 257 Medicare Part D claims for 164 beneficiaries; the average among dermatology physician prescribers was 797. 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.