NPPES file of Aug 9, 2026

Jose Francisco Quiles Diaz, M.D.

Family Medicine Physician · San Antonio, TX

Jose Francisco Quiles Diaz, M.D. is a family medicine physician with a practice address in San Antonio, Texas, and NPI 1033489679, issued on Jan 12, 2012. Check the license (Texas U4315, 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
1033489679
Name
Jose Francisco Quiles Diaz
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
U4315 TX
18645 PR
Self-reported in NPPES; status is on the state search
Practice location
18414 US Highway 281 N Ste 104, San Antonio, TX 78259
Phone
(210) 495-0222
Enumerated
Jan 12, 2012
Record last updated
Feb 17, 2026
Fax
(855) 494-6035
Medicare enrollment
Enrolled (PECOS I20230629003128); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →

Also registered at 18414 US Highway 281 N Ste 104

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

  1. Felicia Armstrong, MDInternal Medicine Physician1669652632
  2. Crystal Chatman-Brown, APRNFamily Nurse Practitioner1851309710
  3. Patricia Johnson, FNPFamily Nurse Practitioner1447621099
  4. Kimberly McDougall, ARNP, FNP-CFamily Nurse Practitioner1548978661
  5. David Medrano, FNPFamily Nurse Practitioner1972988632
  6. Carol Menzel-Anderson, M.D.Internal Medicine Physician1093816183

Verify Jose Francisco Quiles Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license U4315    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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81% fewer Medicare Part D claims than the average family medicine physician in 2024

676 Medicare Part D claims for 53 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 14 claims were for opioids.

  1. Jose Quiles Diaz676
  2. Specialty average3,544

Most prescribed

  1. Metformin Hcl40 claims
  2. Rosuvastatin Calcium34 claims
  3. Atorvastatin Calcium30 claims
  4. Gabapentin27 claims
  5. Ibuprofen27 claims
  6. Losartan Potassium19 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.

Bills Medicare through one group practice

  1. Conviva Medical Center Management OF Texas, P.A.San Antonio, TX

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

Jose Francisco Quiles Diaz among 11,119 family medicine physician records in Texas

Jose Francisco Quiles Diaz, 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 2012, is newer than 67% of them.

  • NPI issued2012 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2010 · median 2004 among the 7,095 with a school on file
  • Record last updated2026 · 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).

809 family medicine physician records list a practice address in San Antonio

They are 809 of the 37,749 NPPES records with a practice address in San Antonio, and 11,119 family medicine physician records in Texas.

All 11,119 in Texas → Every provider in San Antonio → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Sheetal Kanjee, M.D.San Antonio, TX 782591699092155
  2. Shannon Prevette, MDSan Antonio, TX 782591780681510
  3. Ronald Williams, DOSan Antonio, TX 782591689650202
  4. Vidya Amaraneni, MDSan Antonio, TX 782581710112370
  5. Michelle Anson, M.D.San Antonio, TX 782601316928575
  6. Erika Bengtson, MDSan Antonio, TX 782581922666536
  7. Jarrod Brown, MDSan Antonio, TX 782581083877021
  8. Raja Cherukuri, M.D.San Antonio, TX 782581356577076

Common questions

What is Jose Francisco Quiles Diaz, M.D.'s NPI number?

Jose Francisco Quiles Diaz, M.D.'s National Provider Identifier (NPI) is 1033489679, issued on Jan 12, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Jose Francisco Quiles Diaz, M.D. located?

The NPPES record lists a practice address at 18414 US Highway 281 N Ste 104, San Antonio, TX, 78259. Phone: (210) 495-0222. Providers update this record themselves, so call before visiting.

How can I verify Jose Francisco Quiles Diaz, M.D.'s license?

NPPES lists Texas license number U4315, 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 Jose Francisco Quiles Diaz, M.D. prescribe under Medicare Part D?

In 2024, Jose Francisco Quiles Diaz, M.D. had 676 Medicare Part D claims for 53 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.