NPPES file of Aug 9, 2026

David Dela Llata, M.D.

Family Medicine Physician · Brownsville, TX

David Dela Llata, M.D. is a family medicine physician with a practice address in Brownsville, Texas, and NPI 1437384674, issued on May 18, 2009. Check the license (Texas P1859, 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
1437384674
Name
David Dela Llata
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
P1859 TX
Self-reported in NPPES; status is on the state search
Practice location
800 W Jefferson St Ste 200, Brownsville, TX 78520
Phone
(956) 574-0431
Enumerated
May 18, 2009
Record last updated
Nov 3, 2023
Fax
(956) 541-1011
Medicare enrollment
Enrolled (PECOS I20120911000640); 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 800 W Jefferson St Ste 200

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

  1. Patricia Castaneda, PA-CPhysician Assistant1568949147
  2. Norberto Hernandez, FNP-BCFamily Nurse Practitioner1255946935
  3. Jose Mario RodriguezFamily Medicine Physician1952930919
  4. Nadia Sifuentes, FNPFamily Nurse Practitioner1669002564

Verify David Dela Llata in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P1859
    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.

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3.6 times the Medicare Part D claims of the average family medicine physician in 2024

12,894 Medicare Part D claims for 1,899 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 55 claims were for opioids.

  1. David Dela Llata12,894
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium1,124 claims
  2. Metformin Hcl588 claims
  3. Losartan Potassium548 claims
  4. Lisinopril542 claims
  5. Amlodipine Besylate443 claims
  6. Rosuvastatin Calcium421 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: $136.78

1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Dela Llata$136.78
  2. Specialty average$902.55

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. Wellmed Medical Group PAWeslaco, TX

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

David Dela Llata among 11,119 family medicine physician records in Texas

David Dela Llata, M.D. is one of 11,119 family 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 2009, is newer than 59% of them.

  • NPI issued2009 · 59% of these records are older, 38% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2007 · median 2004 among the 7,095 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

30 family medicine physician records list a practice address in Brownsville

They are 30 of the 1,671 NPPES records with a practice address in Brownsville, and 11,119 family medicine physician records in Texas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Alberto Almeida, M.D,Brownsville, TX 785201114988516
  2. David Champion, M.D.Brownsville, TX 785201326046004
  3. Humberto De La Vega, MDBrownsville, TX 785201417933102
  4. Antonio Diaz, M.D.Brownsville, TX 785201952582710
  5. Juan Garcia, M.D.Brownsville, TX 785201760445381
  6. Juan Gonzalez, MDBrownsville, TX 785201154398121
  7. Jesus Ortiz, M.D.Brownsville, TX 785201821245473
  8. Jose Mario RodriguezBrownsville, TX 785201952930919

Common questions

What is David Dela Llata, M.D.'s NPI number?

David Dela Llata, M.D.'s National Provider Identifier (NPI) is 1437384674, issued on May 18, 2009. An NPI identifies a provider in billing; it is not a license.

Where is David Dela Llata, M.D. located?

The NPPES record lists a practice address at 800 W Jefferson St Ste 200, Brownsville, TX, 78520. Phone: (956) 574-0431. Providers update this record themselves, so call before visiting.

How can I verify David Dela Llata, M.D.'s license?

NPPES lists Texas license number P1859, 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 David Dela Llata, M.D. prescribe under Medicare Part D?

In 2024, David Dela Llata, M.D. had 12,894 Medicare Part D claims for 1,899 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.