Dr. Gene Zdenek, M.D.
What this data tells you about Dr. Zdenek
Dr. Gene Zdenek is an ophthalmology specialist in Reseda, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Zdenek performed 4,800 Medicare services across 2,409 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zdenek received a total of $3,394 from 26 pharmaceutical and/or device companies across 107 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in ophthalmology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Zdenek 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
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 |
|---|---|---|---|
| Microfluid analysis of tears A laboratory test that analyzes tear fluid using microfluidic technology to measure specific biomarkers. This procedure helps evaluate the composition of tears for diagnostic purposes. |
1,827 | $22 | $25 |
| Tear duct plug insertion A procedure to insert a small plug into the tear duct opening to help retain tears on the eye surface. |
582 | $162 | $299 |
| Eye exam, established patient, focused A limited examination of the visual system for an existing patient. The provider focuses on a specific eye-related concern or symptom. |
532 | $77 | $110 |
| Retinal photography (fundus photo) This procedure involves taking photographs of the retina, the light-sensitive tissue at the back of the eye. It is used to document the condition of the eye's interior structures. |
209 | $30 | $64 |
| Visual field test, extended A test that maps your complete field of vision to detect blind spots or peripheral vision loss. Extended testing provides a more detailed assessment than a standard visual field exam. |
201 | $54 | $81 |
| Retinal imaging (OCT scan) This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye. |
177 | $32 | $51 |
| CT scan of cornea A computed tomography scan used to create detailed images of the cornea, the clear front part of the eye. |
148 | $28 | $47 |
| Eye photography Photographic imaging of the interior structures of the eye. |
144 | $20 | $28 |
| Extended color vision testing A comprehensive eye exam that includes specialized tests to evaluate color vision. |
127 | $48 | $63 |
| Slit lamp examination of the eye This procedure uses a specialized microscope to examine the front portion of the eye. |
117 | $33 | $66 |
| Comprehensive eye exam, established patient A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider. |
112 | $104 | $157 |
| Optic nerve imaging (OCT scan) Imaging of the optic nerve. |
110 | $29 | $46 |
| Eye drainage system examination An examination of the internal drainage system of the eye to assess how fluid flows and drains from the eye. |
80 | $24 | $34 |
| Retinal and optic nerve function test A diagnostic test that measures how well the retina and optic nerve are functioning. |
71 | $115 | $171 |
| Visual evoked potential test A test that measures how quickly electrical signals travel from the eye to the brain in response to visual stimuli. |
71 | $55 | $88 |
| Extended exam of back of eye with optic nerve drawing A detailed examination of the posterior section of the eye, including the optic nerve, with documentation through drawing. |
58 | $13 | $20 |
| Amniotic membrane placement on eye surface This procedure involves placing amniotic membrane on the surface of the eye to promote wound healing. |
37 | $1,239 | $1,851 |
| Cataract surgery with lens implant Surgical removal of the clouded natural lens of the eye and replacement with an artificial prosthetic lens to restore vision. |
27 | $94 | $720 |
| 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. |
27 | $130 | $198 |
| Comprehensive eye exam, new patient A comprehensive examination of the visual system performed for a new patient. |
23 | $127 | $187 |
| Incision and drainage of eyelid abscess A minor surgical procedure to cut open and drain an infected, pus-filled swelling on the eyelid. |
21 | $261 | $370 |
| Extended eye exam with retinal drawing A detailed examination of the back of the eye that includes creating a drawing of the retina. |
21 | $21 | $35 |
| Incision and drainage of eye cyst A procedure to make a small cut and drain fluid from a cyst on the eye. |
19 | $103 | $150 |
| 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. |
18 | $71 | $91 |
| Imaging of front third of eye Imaging of the front third of the eye. |
16 | $26 | $39 |
| Eyelash removal with forceps This procedure involves the manual removal of eyelashes using forceps. It is a mechanical extraction method performed on the eyelid area. |
13 | $15 | $41 |
| New patient office visit, complex (60-74 min) | 12 | $188 | $248 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2019-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | 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. Zdenek is a mixed practice specialist, with above-average Medicare volume (top 21% in CA), with low-engagement industry engagement, with 19 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. Zdenek experienced with microfluid analysis of tears?
Does Dr. Zdenek receive payments from pharmaceutical companies?
How do Dr. Zdenek's costs compare to other ophthalmologists in Reseda?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): 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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology