NPPES file of Aug 9, 2026

Roberto Fabricio Diaz, M.D.

Sleep Medicine (Internal Medicine) Physician · Corpus Christi, TX

Roberto Fabricio Diaz, M.D. is a sleep medicine (internal medicine) physician with a practice address in Corpus Christi, Texas, and NPI 1851300891, issued on Aug 7, 2006. Check the license (Texas J7943, 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
1851300891
Name
Roberto Fabricio Diaz
Credential
M.D.
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License number
J7943 TX
Self-reported in NPPES; status is on the state search
Practice location
7121 S Padre Island Dr Ste 104, Corpus Christi, TX 78412
Phone
(361) 271-5221
Enumerated
Aug 7, 2006
Record last updated
Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
170710103 TX
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Roberto Fabricio Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J7943
    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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94% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

34 Medicare Part D claims for 21 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D.

  1. Roberto Diaz34
  2. Specialty average585

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: $99.13

1 payment: food and beverage; the largest payer was Spr Therapeutics, Inc. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Roberto Diaz$99.13
  2. Specialty average$3,724.37

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

Roberto Fabricio Diaz among 56 sleep medicine (internal medicine) physician records in Texas

Roberto Fabricio Diaz, M.D. is one of 56 sleep medicine (internal medicine) physician records with a practice address in Texas. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 45% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2021 · 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 207RS0012X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in Texas

There are 56 sleep medicine (internal medicine) physician records in Texas.

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Sonam Jaggi, MDCorpus Christi, TX 784111528486933
  2. Collin Clay, MDJbsa Lackland, TX 782361205332210
  3. Jaclyn Faulk, DOJbsa Lackland, TX 782361578093126
  4. William Frey, MDJbsa Lackland, TX 782361427049345
  5. Amanda Radtke, MDJbsa Lackland, TX 782361215475413
  6. Henry Scheuller, M.D.Jbsa Lackland, TX 782361457670796
  7. Rafael Santiago, M.D.San Antonio, TX 782341053305508
  8. Avie Grunspan, MDSan Antonio, TX 782311881695542

Common questions

What is Roberto Fabricio Diaz, M.D.'s NPI number?

Roberto Fabricio Diaz, M.D.'s National Provider Identifier (NPI) is 1851300891, issued on Aug 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Roberto Fabricio Diaz, M.D. located?

The NPPES record lists a practice address at 7121 S Padre Island Dr Ste 104, Corpus Christi, TX, 78412. Phone: (361) 271-5221. Providers update this record themselves, so call before visiting.

How can I verify Roberto Fabricio Diaz, M.D.'s license?

NPPES lists Texas license number J7943, 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 Roberto Fabricio Diaz, M.D. prescribe under Medicare Part D?

In 2024, Roberto Fabricio Diaz, M.D. had 34 Medicare Part D claims for 21 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.