1. Home
  2. Directory
  3. Texas
  4. Longview
  5. Optometrist
  6. NPI Profile

BLAKE THOMAS WILLIAMS O.D.
NPI 1942619275
Optometrist in Longview, TX

Active since August 12, 2014PECOS EnrolledAccepts Medicare Assignment
2394 H G MOSLEY PKWY, LONGVIEW, TX 75604(903) 234-0771(903) 234-0775 Get Directions Write a Review

NPPES record last updated: August 9, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Blake Thomas Williams O.d. NPPES

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

BLAKE THOMAS WILLIAMS O.D. (NPI 1942619275) is an individual optometrist in Longview, Texas, licensed in Texas (8513T) and active in the NPI registry since August 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1942619275
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameBLAKE THOMAS WILLIAMSCredential: O.D.
Location Address2394 H G MOSLEY PKWYLongview, TX 75604-3661
Mailing Address2394 H G Mosley PkwyLongview, TX 75604-3661 · (903) 234-0771 · Fax (903) 234-0775
Phone(903) 234-0771
Fax(903) 234-0775
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateAugust 12, 2014
Last NPPES UpdateAugust 9, 2023
NPPES CertifiedAugust 9, 2023
✔ NPI 1942619275 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in TX · 8513T
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
2394 H G MOSLEY PKWY, Longview, TX 75604
Open in Google Maps ↗

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

Blake Thomas Williams O.d. 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 ID749409654
PECOS Enrollment IDI20140908001979, I20201204002053
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 Reassignments

2

Medicare enrollment records show Blake Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Longview Eye Associates. PA
5.5 mi
Optometrist
1821 JUDSON RD
Longview, TX 75605
  • Reassigned Medicare billing, Louisiana and Texas enrollments
NPI 1790799773 (903) 758-8832
Ward Eye Associates PC
28 mi
Optometrist
2306 E END BLVD S
Marshall, TX 75672
  • Reassigned Medicare billing, Texas enrollment
  • 17 clinicians in this Medicare group
NPI 1184208134 (903) 938-2555

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 10

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.

Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
249 services246 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
229 services226 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
106 services87 patients
Established patient problem focused exam of visual system 92012
This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.
65 services51 patients
New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
57 services57 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
47 services35 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75604 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.

CHARLES L. HEATON , M.D. P.A.
Ophthalmology
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Gregg County (903) 234-0771
SHANNON LEBUS DO
Optometrist
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Gregg County (903) 234-0771
ALDEN PAIGE GREGSTON MD
Ophthalmology
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Gregg County (903) 234-0771
MR. JOEL THOMAS MUIRHEAD M. D.
Ophthalmology
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Gregg County (903) 539-9520
DR. EMILY GREER MARSH OD
Optometrist
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Gregg County (903) 526-0444

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 Blake Williams's NPI number?

The NPI number for Blake Williams is 1942619275. It was assigned to this individual provider in the NPPES registry on August 12, 2014.

Where is Blake Williams located?

Blake Williams practices at 2394 H G Mosley Pkwy, Longview, TX 75604. The listed phone number is (903) 234-0771.

What is Blake Williams's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Blake Williams enrolled in Medicare?

Yes. Blake Williams 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 organizations bill Medicare for Blake Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Blake Williams reassigns Medicare benefits to 2 organizations: Longview Eye Associates. PA (Longview, TX) and Ward Eye Associates PC (Marshall, TX). Each 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 Blake Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Blake Williams 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 14 other insurers list Blake Williams 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 Blake Williams was last updated on August 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.