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MARIA DIAZ FNP
NPI 1972475184
Nurse Practitioner - Family in Mission, TX

Active since September 18, 2025PECOS EnrolledAccepts Medicare Assignment
2005 E GRIFFIN PKWY STE A, MISSION, TX 78572(956) 591-0760 Get Directions Write a Review

NPPES record last updated: September 18, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Maria Diaz Fnp NPPES

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

MARIA DIAZ FNP (NPI 1972475184) is an individual family provider in Mission, Texas, licensed in Texas (1213322) and active in the NPI registry since September 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1972475184
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARIA DIAZCredential: FNP
Location Address2005 E GRIFFIN PKWY STE AMission, TX 78572-0028
Mailing AddressPo Box 216Garciasville, TX 78547-0216 · (956) 437-7150
Phone(956) 591-0760
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 18, 2025
NPPES CertifiedSeptember 18, 2025
✔ NPI 1972475184 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in TX · 1213322
2005 E GRIFFIN PKWY STE A, Mission, TX 78572
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

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

Maria Diaz Fnp 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 ID3274024187
PECOS Enrollment IDI20251118002677
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 Maria Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Osmin Vargas Family Clinic PLLC
0.8 mi
Family Medicine
2521 E GRIFFIN PKWY STE A
Mission, TX 78572
  • Reassigned Medicare billing, Texas enrollment
  • 2 clinicians in this Medicare group
NPI 1336816339 (956) 591-0760

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 78572 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
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.

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 Maria Diaz's NPI number?

The NPI number for Maria Diaz is 1972475184. It was assigned to this individual provider in the NPPES registry on September 18, 2025.

Where is Maria Diaz located?

Maria Diaz practices at 2005 E Griffin Pkwy Ste A, Mission, TX 78572. The listed phone number is (956) 591-0760.

What is Maria Diaz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Maria Diaz enrolled in Medicare?

Yes. Maria 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 Maria Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Diaz reassigns Medicare benefits to Osmin Vargas Family Clinic PLLC (Mission, 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 Maria Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maria Diaz accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Maria Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Diaz was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.