Physician Profile
Unclaimed ProfileAbout Dr. Lyon
Christopher 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.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (714) 771-1144
- Email not available
Practice Locations
1201 W LA VETA AVE 300
Orange, CA 92868
Procedures Most Often Billed to Medicare
691 services · 214 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
18 |
| Multiple measurements of eye fluid pressure over an extended time period | Treatment | 92100 |
103 |
| Therapy procedure using manual technique, each 15 minutes | Treatment | 97140 |
99 |
| Training for self-care or home management, each 15 minutes | Treatment | 97535 |
97 |
| Exam of the internal drainage system of eye | Treatment | 92020 |
68 |
| Extended exam involving color vision testing | Treatment | 92283 |
50 |
| Exam of visual field with extended testing | Treatment | 92083 |
47 |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
35 |
| Extended exam of the back part of the eye with optic nerve drawing | Treatment | 92202 |
33 |
| Exam of visual field with intermediate testing | Treatment | 92082 |
31 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other ophthalmology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other ophthalmology specialists in Orange 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of cornea to determine thickness 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Lyon's specialty?
Dr. Lyon is an ophthalmology in Orange, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where can I find Dr. Lyon?
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
How do I contact Dr. Lyon?
The number on file is (714) 771-1144. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Lyon?
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
What is Dr. Lyon's medical education?
Dr. Lyon attended Other, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Lyon have?
Dr. Lyon has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Lyon known for?
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
Is Dr. Lyon's profile verified?
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.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.