Dr. Barry Fung, M.D.
What this data tells you about Dr. Fung
Dr. Barry Fung is an ophthalmology specialist in Los Altos, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Fung performed 6,492 Medicare services across 4,593 unique beneficiaries.
Between the years covered by Open Payments, Dr. Fung received a total of $559 from 7 pharmaceutical and/or device companies across 25 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. Fung 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 |
|---|---|---|---|
| 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. |
1,643 | $83 | $157 |
| Optic nerve imaging (OCT scan) Imaging of the optic nerve. |
584 | $30 | $162 |
| 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. |
581 | $56 | $182 |
| Extended eye exam with retinal drawing A detailed examination of the back of the eye that includes creating a drawing of the retina. |
532 | $19 | $113 |
| Retinal imaging (OCT scan) This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye. |
528 | $37 | $163 |
| Dilation of tear drainage opening A procedure to widen the opening of the tear drainage system to improve the flow of tears from the eye. |
436 | $42 | $124 |
| 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. |
435 | $33 | $157 |
| Eye drainage system examination An examination of the internal drainage system of the eye to assess how fluid flows and drains from the eye. |
369 | $23 | $104 |
| Tear duct plug insertion A procedure to insert a small plug into the tear duct opening to help retain tears on the eye surface. |
351 | $97 | $335 |
| Ultrasound scan of cornea to determine thickness An ultrasound procedure used to measure the thickness of the cornea. |
192 | $9 | $95 |
| 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. |
191 | $13 | $108 |
| 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. |
163 | $132 | $296 |
| Corneal topography and eye depth measurement This procedure measures the curvature and depth of the cornea, the clear front surface of the eye. |
113 | $44 | $162 |
| Laser eye fluid drainage tract creation A laser procedure used to create drainage tracts in the iris to help fluid flow out of the eye. |
81 | $289 | $731 |
| 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. |
74 | $518 | $1,199 |
| Laser removal of recurring cataract A laser procedure to remove a recurring cataract within the lens capsule. |
61 | $317 | $717 |
| Complex cataract removal with lens implant A surgical procedure to remove a cataract from the eye and insert an artificial lens to restore vision. |
41 | $708 | $1,500 |
| Nasal tear duct probing A procedure to examine and clear the tear ducts in the nose. It helps restore normal drainage of tears from the eye. |
35 | $179 | $399 |
| Bevacizumab injection, 10 mg Administration of a 10 mg dose of bevacizumab medication via injection. |
33 | $52 | $105 |
| CT scan of cornea A computed tomography scan used to create detailed images of the cornea, the clear front part of the eye. |
30 | $33 | $100 |
| Ultrasound scan to determine eye length and lens power An ultrasound procedure used to measure the length of the eye and calculate the power of the lens. |
19 | $70 | $157 |
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 (2018-2024) ›
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
3.1 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. Fung is a mixed practice specialist, with above-average Medicare volume (top 15% 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. Fung experienced with eye exam, established patient, focused?
Does Dr. Fung receive payments from pharmaceutical companies?
How do Dr. Fung's costs compare to other ophthalmologists in Los Altos?
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