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JOSE JAVIER GUZMAN DIAZ MD
NPI 1528452406
Family Medicine in Pasadena, TX

Active since March 27, 2015PECOS EnrolledAccepts Medicare Assignment
320 SOUTHMORE AVE STE 328, PASADENA, TX 77502(888) 478-8432(346) 237-4052 Get Directions Write a Review

NPPES record last updated: May 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 14, 2026, Jun 13, 2024, Dec 8, 2022 and 5 more (8 updates tracked since 2018).

About Jose Javier Guzman Diaz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOSE JAVIER GUZMAN DIAZ MD (NPI 1528452406) is an individual family medicine provider in Pasadena, Texas, licensed in Texas (S6198) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1528452406
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameJOSE JAVIER GUZMAN DIAZCredential: MD
Location Address320 SOUTHMORE AVE STE 328Pasadena, TX 77502-1135
Mailing Address211 E 7th St Ste 700Austin, TX 78701-3218 · (888) 478-8432 · Fax (737) 707-3909
Phone(888) 478-8432
Fax(346) 237-4052
Sole ProprietorYes
Medical School CMSOtherGraduated 2018
Enumeration DateMarch 27, 2015
Last NPPES UpdateMay 14, 20268 updates tracked since enumeration
NPPES CertifiedMay 14, 2026
✔ NPI 1528452406 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in TX · S6198
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
320 SOUTHMORE AVE STE 328, Pasadena, TX 77502
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jose Javier Guzman Diaz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4385986991
PECOS Enrollment IDI20200624002753
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Jose Guzman Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Suvida Healthcare Npho
157 mi
Clinic/Center
211 E 7TH ST STE 700
Austin, TX 78701
  • Reassigned Medicare billing, Texas enrollment
  • 63 clinicians in this Medicare group
NPI 1033842414 (346) 639-3438

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77502 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PEDRO MIGUEL ALVAREZ FERNANDEZ APRN-CNP
Nurse Practitioner
320 SOUTHMORE AVE STE 328
PASADENA, TX 77502
Harris County (888) 478-8432
JUAN CARLOS VAQUERANO RAIS M.D.
Family Medicine
320 SOUTHMORE AVE STE 328
PASADENA, TX 77502
Harris County (346) 639-3500
LIZETTE VELA APRN-CNP
Nurse Practitioner (Family)
320 SOUTHMORE AVE STE 328
PASADENA, TX 77502
Harris County (888) 478-8432
MONICA SANCHEZ RD
Dietitian, Registered
320 SOUTHMORE AVE STE 328
PASADENA, TX 77502
Harris County (888) 478-8432

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jose Guzman Diaz's NPI number?

The NPI number for Jose Guzman Diaz is 1528452406. It was assigned to this individual provider in the NPPES registry on March 27, 2015.

Where is Jose Guzman Diaz located?

Jose Guzman Diaz practices at 320 Southmore Ave Ste 328, Pasadena, TX 77502. The listed phone number is (888) 478-8432.

What is Jose Guzman Diaz's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Jose Guzman Diaz enrolled in Medicare?

Yes. Jose Guzman Diaz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Jose Guzman Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jose Guzman Diaz reassigns Medicare benefits to Suvida Healthcare Npho (Austin, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jose Guzman Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Jose Guzman Diaz was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.