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DR. WILLIAM JUSTUS HEAD III M.D.
NPI 1508802877
Ophthalmology in Edinburg, TX

Active since June 22, 2006PECOS Enrolled
2518 W TRENTON RD, EDINBURG, TX 78539(956) 661-9000(956) 686-7833 Get Directions Write a Review

NPPES record last updated: February 4, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. William Justus Head Iii M.d. NPPES

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

DR. WILLIAM JUSTUS HEAD III M.D. (NPI 1508802877) is an individual ophthalmology provider in Edinburg, Texas, licensed in Texas (F6730) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1508802877
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. WILLIAM JUSTUS HEAD IIICredential: M.D.
Location Address2518 W TRENTON RDEdinburg, TX 78539-8070
Mailing Address5111 N 10th St, Pmb 210Mcallen, TX 78504-2835 · (956) 631-4533 · Fax (956) 631-4335
Phone(956) 661-9000
Fax(956) 686-7833
Sole ProprietorNo
Enumeration DateJune 22, 2006
Last NPPES UpdateFebruary 4, 2025
NPPES CertifiedFebruary 4, 2025
✔ NPI 1508802877 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in TX · F6730
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
2518 W TRENTON RD, Edinburg, TX 78539
Open in Google Maps ↗

Other Identifiers 2

Medicaid135476309TX
Other0093NATX · Blue Cross/shield

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 (PECOS)

Dr. William Justus Head Iii M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 William Head reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Carlos Manrique De Lara Mdpa
0.4 mi
Ophthalmology
2518 W TRENTON RD
Edinburg, TX 78539
  • Reassigned Medicare billing, Texas enrollment
  • 11 clinicians in this Medicare group
NPI 1770558447 (956) 661-9000

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 78539 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
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 5

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

DR. CARLOS MANRIQUE DE LARA M.D., F.A.C.S.
Ophthalmology
2518 W TRENTON RD
EDINBURG, TX 78539
Hidalgo County (956) 661-9000
CARLOS MANRIQUE DE LARA MDPA
Ophthalmology
2518 W TRENTON RD
EDINBURG, TX 78539
Hidalgo County (956) 661-9000
DR. RAJ V BHAKTA OD
Optometrist
2518 W TRENTON RD
EDINBURG, TX 78539
Hidalgo County (956) 661-9000
MICHELLE J GARCIA O.D.
Optometrist
2518 W TRENTON RD
EDINBURG, TX 78539
Hidalgo County (956) 661-9000
ALFREDO TREJO JR. OD
Optometrist
2518 W TRENTON RD
EDINBURG, TX 78539
Hidalgo County (956) 661-9000

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 Head's NPI number?

The NPI number for William Head is 1508802877. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Where is William Head located?

William Head practices at 2518 W Trenton Rd, Edinburg, TX 78539. The listed phone number is (956) 661-9000.

What is William Head's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is William Head enrolled in Medicare?

Yes. William Head is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Head's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Head reassigns Medicare benefits to Carlos Manrique De Lara Mdpa (Edinburg, 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 Head's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Head 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 William Head 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 Head was last updated on February 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.