Jose Javier Guzman Diaz, MD
Family Medicine Physician · Pasadena, TX
Jose Javier Guzman Diaz, MD is a family medicine physician with a practice address in Pasadena, Texas, and NPI 1528452406, issued on Mar 27, 2015. Check the license (Texas S6198, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jose Javier Guzman Diaz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- S6198 TX
Self-reported in NPPES; status is on the state search - Practice location
- 320 Southmore Ave Ste 328, Pasadena, TX 77502
- Phone
- (888) 478-8432
- Enumerated
- Mar 27, 2015
- Record last updated
- May 14, 2026
- Fax
- (346) 237-4052
- Medicare enrollment
- Enrolled (PECOS I20200624002753); 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 320 Southmore Ave Ste 328
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pedro Alvarez Fernandez, APRN-CNPNurse Practitioner1285979716
- Monica Sanchez, RDRegistered Dietitian1962182196
- Juan Vaquerano Rais, M.D.Family Medicine Physician1578810958
- Lizette Vela, APRN-CNPFamily Nurse Practitioner1619517257
Verify Jose Javier Guzman Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S6198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average family medicine physician in 2024
9,086 Medicare Part D claims for 610 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. 99 claims were for opioids.
Most prescribed
- Atorvastatin Calcium688 claims
- Metformin Hcl347 claims
- Lisinopril309 claims
- Amlodipine Besylate286 claims
- Losartan Potassium247 claims
- Levothyroxine Sodium235 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
- Suvida Healthcare NphoHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jose Javier Guzman Diaz among 11,119 family medicine physician records in Texas
Jose Javier Guzman 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 2015, is newer than 75% of them.
- NPI issued2015 · 75% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2018 · 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).
52 family medicine physician records list a practice address in Pasadena
They are 52 of the 1,245 NPPES records with a practice address in Pasadena, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Pasadena → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Julio Arauz, M.D.Pasadena, TX 775021306941992
- Edith Gonzalez-Godinez, DOPasadena, TX 775021477256535
- Michelle Hanson, FNP, RNPasadena, TX 775021700393931
- Louise Henson, MDPasadena, TX 775021093760746
- Enrique Molano-Manrique, M.D.Pasadena, TX 775021437118924
- Juan Vaquerano Rais, M.D.Pasadena, TX 775021578810958
- Jaime Hurtado, MDPasadena, TX 775031346404050
- Gary Rosen, M.D.Pasadena, TX 775031609984772
Common questions
What is Jose Javier Guzman Diaz, MD's NPI number?
Jose Javier Guzman Diaz, MD's National Provider Identifier (NPI) is 1528452406, issued on Mar 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Jose Javier Guzman Diaz, MD located?
The NPPES record lists a practice address at 320 Southmore Ave Ste 328, Pasadena, TX, 77502. Phone: (888) 478-8432. Providers update this record themselves, so call before visiting.
How can I verify Jose Javier Guzman Diaz, MD's license?
NPPES lists Texas license number S6198, 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 Javier Guzman Diaz, MD prescribe under Medicare Part D?
In 2024, Jose Javier Guzman Diaz, MD had 9,086 Medicare Part D claims for 610 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.