ADOLFO DWIGHT DIAZ MD
NPI 1871989004
Surgery in Laredo, TX
About Adolfo Dwight Diaz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADOLFO DWIGHT DIAZ MD (NPI 1871989004) is an individual surgery provider in Laredo, Texas, licensed in North Carolina (2026-03373) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Laredo Medical Center, and maintains a secondary practice location in Holly Springs.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted 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
Adolfo Dwight 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.
Medicare Billing Reassignment
Medicare enrollment records show Adolfo Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Victoria, TX 77901
- Reassigned Medicare billing, Texas enrollment
- 318 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Laredo Medical Center
Acute Care Hospitals · Laredo, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78041 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.
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 Adolfo Diaz's NPI number?
The NPI number for Adolfo Diaz is 1871989004. It was assigned to this individual provider in the NPPES registry on April 14, 2015.
Where is Adolfo Diaz located?
Adolfo Diaz practices at 1710 E Saunders St Ste 460, Laredo, TX 78041. The listed phone number is (956) 796-4640.
What is Adolfo Diaz's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Adolfo Diaz enrolled in Medicare?
Yes. Adolfo 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 Adolfo Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adolfo Diaz reassigns Medicare benefits to Regional Employee Assistance Program Inc (Victoria, 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 Adolfo Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Adolfo 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 2 other insurers list Adolfo 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.
Is Adolfo Diaz affiliated with any hospitals?
According to CMS data, Adolfo Diaz is affiliated with Laredo Medical Center.
When was this NPI record last updated?
The NPPES record for Adolfo Diaz was last updated on October 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.
# Adolfo Dwight Diaz, MD · NPI 1871989004
Surgery physician in Laredo, Texas. Individual provider, active in the CMS NPPES registry since April 14, 2015.
## Identity
- **NPI:** 1871989004 (Entity type: Individual)
- **Enumerated:** April 14, 2015
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 2026-03373 (North Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 1710 E SAUNDERS ST STE 460, Laredo, TX 78041-5454
- **Phone:** (956) 796-4640
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Regional Employee Assistance Program Inc (NPI 1215999511, Victoria, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** October 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871989004) · Data from the CMS NPPES public registry.