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Edit this profileChristopher Lyon, PhD, MD is a healthcare provider in Orange, CA specializing in ophthalmology. Christopher is also listed as specializing in surgery. Medicare claims data shows Christopher provided 691 services to 214 patients. The services billed most often include multiple measurements of eye fluid pressure over an extended time period, therapy procedure using manual technique, each 15 minutes, and training for self-care or home management, each 15 minutes. This provider record is associated with NPI 1649316753.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1201 W LA VETA AVE 300
Orange, CA 92868
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Eye injury and cancer
Inflammation, neurologic, and orbit
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
Retina and vitreous
Eye injuries
Retina & vitreous
Cataract and lens
Cornea and refractive
Emergency and minor
Examination and imaging
Eyelid, tear duct, and muscle
Glaucoma
Retina
Most searched procedures
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
691 services · 214 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
18 | Less often than most peers in Ophthalmology |
| Multiple measurements of eye fluid pressure over an extended time period | Treatment | 92100 |
103 | More often than most peers in Ophthalmology |
| Therapy procedure using manual technique, each 15 minutes | Treatment | 97140 |
99 | Too few peers to compare |
| Training for self-care or home management, each 15 minutes | Treatment | 97535 |
97 | Too few peers to compare |
| Exam of the internal drainage system of eye | Treatment | 92020 |
68 | More often than most peers in Ophthalmology |
| Extended exam involving color vision testing | Treatment | 92283 |
50 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
47 | Less often than most peers in Ophthalmology |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
35 | As often as other peers in Ophthalmology |
| Extended exam of the back part of the eye with optic nerve drawing | Treatment | 92202 |
33 | Less often than most peers in Ophthalmology |
| Exam of visual field with intermediate testing | Treatment | 92082 |
31 | As often as other peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Lyon is an eye doctor in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Dr. Lyon is listed at 1201 W la Veta Ave 300, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (714) 771-1144. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Lyon's National Provider Identifier is 1649316753. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Lyon attended Other, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
Dr. Lyon has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Lyon performs imaging including ultrasound scan of cornea to determine thickness; provides treatments such as multiple measurements of eye fluid pressure over an extended time period and therapy procedure using manual technique, each 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lyon. If this is you, claiming it is free.
Guide.md
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