Dr. Charles Clark, M.D.
What this data tells you about Dr. Clark
Dr. Charles Clark is an ophthalmology specialist in Abilene, TX, with 17 years of NPI registration. Based on federal Medicare data, Dr. Clark performed 20,558 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Clark received a total of $6,169 from 18 pharmaceutical and/or device companies across 40 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Clark is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary — 2023
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Eye injection (Vabysmo/faricimab) An injection of faricimab-svoa, a medication administered in 0.1 mg doses. |
7,800 | $29 | $70 |
| Ranibizumab-eqrn injection, 0.1 mg An injection of the biosimilar medication ranibizumab-eqrn (Cimerli) in a 0.1 mg dose. |
3,570 | $217 | $801 |
| Retinal imaging (OCT scan) This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye. |
3,004 | $29 | $100 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
2,222 | $89 | $315 |
| Eye injection for retinal disease A procedure involving the administration of medication directly into the eye. |
1,548 | $84 | $563 |
| Injection, ranibizumab, 0.1 mg | 762 | $188 | $800 |
| Aflibercept eye injection (Eylea) | 572 | $696 | $2,000 |
| Retinal angiography with dye injection This procedure uses a special camera to examine the blood vessels in the retina after a dye has been injected into the body. |
323 | $103 | $310 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
211 | $114 | $410 |
| Compounded drug, not otherwise classified A medication prepared specifically for an individual patient by a pharmacist or physician, tailored to meet unique needs that cannot be fulfilled by commercially available products. |
182 | $62 | $176 |
| Comprehensive eye exam, established patient A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider. |
134 | $88 | $315 |
| Fluorescein angiography of retina A special camera captures images of the blood vessels in the retina and the area between the white part of the eye and the retina after a dye is injected. |
61 | $200 | $615 |
| Ultrasound of eye tissue and structures A diagnostic imaging test that uses sound waves to create pictures of the eye's internal tissues and structures. |
53 | $32 | $120 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
43 | $61 | $225 |
| Retinal laser treatment for leaking blood vessels This procedure uses a laser to seal leaking blood vessels in the retina. It is performed to prevent vision loss caused by fluid leakage from damaged retinal vessels. |
31 | $234 | $1,650 |
| Retinal laser destruction of growth A laser procedure used to destroy abnormal growths in the retina. |
24 | $385 | $2,500 |
| New patient office visit, complex (60-74 min) | 18 | $152 | $540 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Geographic Context
8.9 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Clark is a mixed practice specialist, with above-average Medicare volume (top 5% in TX), with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Clark experienced with eye injection (vabysmo/faricimab)?
Does Dr. Clark receive payments from pharmaceutical companies?
How do Dr. Clark's costs compare to other ophthalmologists in Abilene?
What does Data Coverage mean?
Is this data up to date?
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This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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