WILLIAM DIAZ JR. NP-C
NPI 1841796562
Nurse Practitioner - Family in New Braunfels, TX
About William Diaz Jr. Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM DIAZ JR. NP-C (NPI 1841796562) is an individual family provider in New Braunfels, Texas, licensed in Texas (AP136933) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Diaz Jr. Np-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Spring, TX 77389
- Reassigned Medicare billing, Texas enrollment
- 107 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78130 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 William Diaz's NPI number?
The NPI number for William Diaz is 1841796562. It was assigned to this individual provider in the NPPES registry on April 2, 2018.
Where is William Diaz located?
William Diaz practices at 1762 E Common St, New Braunfels, TX 78130. The listed phone number is (830) 327-1021.
What is William Diaz's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is William Diaz enrolled in Medicare?
Yes. William Diaz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Diaz reassigns Medicare benefits to David P Ellent PLLC (Spring, 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 William Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Diaz accept?
Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list William 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 William Diaz was last updated on January 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# William Diaz Jr., NP-C · NPI 1841796562
Family physician in New Braunfels, Texas. Individual provider, active in the CMS NPPES registry since April 2, 2018.
## Identity
- **NPI:** 1841796562 (Entity type: Individual)
- **Enumerated:** April 2, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP136933 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1762 E COMMON ST, New Braunfels, TX 78130-6059
- **Phone:** (830) 327-1021
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** David P Ellent PLLC (NPI 1245777440, Spring, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 22, 2024
- **Other identifiers:** Medicaid 3821027-02 (TX); Medicaid 1841796562 (TX)
---
Source: [NPI Profile](https://npiprofile.com/npi/1841796562) · Data from the CMS NPPES public registry.