Horacio Alberto Diaz, MD
Family Medicine Physician · Laredo, TX
Horacio Alberto Diaz, MD is a family medicine physician with a practice address in Laredo, Texas, and NPI 1912999699, issued on Aug 18, 2005. Check the license (Texas K4408, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Horacio Alberto Diaz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- K4408 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3402 E Del Mar Blvd Ste 184, Laredo, TX 78041
- Phone
- (956) 267-4667
- Enumerated
- Aug 18, 2005
- Record last updated
- Dec 8, 2025
- Fax
- (956) 267-4667
- Medicaid ID
- 101646103 TX
- Medicare enrollment
- Enrolled (PECOS I20040603001325); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 3402 E Del Mar Blvd Ste 184
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Diaz, MDEmergency Medicine Physician1548765845
- Lauryn Rodriguez, FNP-CNurse Practitioner1548154370
Verify Horacio Alberto Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K4408Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
372 Medicare Part D claims for 200 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 11 claims were for opioids.
Most prescribed
- Gabapentin29 claims
- Celecoxib25 claims
- Ibuprofen22 claims
- Atorvastatin Calcium12 claims
- Cefdinir11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Laredo Emergency Medicine Associates PALaredo, TX
- Wellness Whisper PLLCLaredo, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Horacio Alberto Diaz among 11,119 family medicine physician records in Texas
Horacio Alberto Diaz, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1988 · median 2004 among the 7,095 with a school on file
- Record last updated2025 · 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).
70 family medicine physician records list a practice address in Laredo
They are 70 of the 2,290 NPPES records with a practice address in Laredo, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Laredo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Bang, M.D.Laredo, TX 780411467442848
- Luis Benavides, MDLaredo, TX 780411780656686
- Maurice Click, M.D.Laredo, TX 780411396791331
- Rene Compean, MDLaredo, TX 780411114942885
- Gustavo Garcia Ramos, MDLaredo, TX 780411609971423
- David Garza, D.O.Laredo, TX 780411073559324
- Beatriz Garza De Caldera, MDLaredo, TX 780411508850835
- Arturo Garza-Gongora, MDLaredo, TX 780411003880162
Common questions
What is Horacio Alberto Diaz, MD's NPI number?
Horacio Alberto Diaz, MD's National Provider Identifier (NPI) is 1912999699, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Horacio Alberto Diaz, MD located?
The NPPES record lists a practice address at 3402 E Del Mar Blvd Ste 184, Laredo, TX, 78041. Phone: (956) 267-4667. Providers update this record themselves, so call before visiting.
How can I verify Horacio Alberto Diaz, MD's license?
NPPES lists Texas license number K4408, 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 Horacio Alberto Diaz, MD prescribe under Medicare Part D?
In 2024, Horacio Alberto Diaz, MD had 372 Medicare Part D claims for 200 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Horacio Alberto Diaz, MD's MIPS final score?
The 2023 MIPS final score is 79.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.