OrganizationActive
William Justus Head MD PA
NPI 1811939184 · Ophthalmology Physician · Mcallen, TX
William Justus Head MD PA is a Ophthalmology Physician organization in Mcallen, TX (NPI 1811939184).
Provider details
- NPI number
- 1811939184
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Head, President(956) 631-4533
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
605 E Violet Ave
Suite 2
Mcallen, TX 78504-2481
Phone: (956) 631-4533
Fax: (956) 631-4335
Street-level locationGet directions
Mailing address
5111 N 10th St
Mcallen, TX 78504-2835
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2012-07-10
Frequently asked questions
- What is William Justus Head MD PA's NPI number?
- William Justus Head MD PA's National Provider Identifier (NPI) is 1811939184, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Justus Head MD PA?
- William Justus Head MD PA is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Justus Head MD PA located?
- William Justus Head MD PA's practice location on file with NPPES is 605 E Violet Ave, Mcallen, TX 78504-2481.
- What is William Justus Head MD PA's phone number?
- The practice phone number listed in the NPPES registry for William Justus Head MD PA is (956) 631-4533.
- Who is the authorized official for William Justus Head MD PA?
- The authorized official listed on William Justus Head MD PA's NPPES record is William Head, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William Justus Head MD PA's NPI active?
- Yes — William Justus Head MD PA's NPI (1811939184) is active in the NPPES registry as of the last update on 2012-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.