Dr. Christopher Lyon , PhD, MD
Ophthalmology โข Orange, CA
1201 W La Veta Ave, 300
Orange, CA 928684213
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. Christopher Lyon is listed in NPPES under Ophthalmology.
-
NPI assigned on January 29, 2007; this date does not establish years in practice.
-
Published CMS data list 691 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 92100 โ Multiple measurements of eye fluid pressure over an extended time period: 103 service units.
- 97140 โ Therapy procedure using manual technique: 99 service units.
- 97535 โ Training for self-care or home management: 97 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 12 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2021. Published rows only; this is not a quality measure.
-
Published Part D records, 2021:
- Latanoprost โ 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
-
Fewer Medicare Part B services than 60% of clinicians listed under Ophthalmology in Orange, CA (2024, 15 clinicians with data). Median for this group: 1,142. Middle half: 428 to 1,790.
Fewer Medicare Part B services than 70% of clinicians listed under Ophthalmology in California (2024, 1,572 clinicians with data). Median for this group: 1,776. Middle half: 600 to 3,873.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 512 in 2020 to 691 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1201 W La Veta Ave
300
Orange, CA 928684213
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1989
What Public CMS Data Show
Ophthalmology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
21 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $44,474 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $34,088 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
25 standardized 30-day fills in 2021
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$406 in 2021
The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2021.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
37 years (graduated 1989)
CMS Doctors and Clinicians data list 1989 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Lyon has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Lyon as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Orange and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 60% of clinicians listed under Ophthalmology in Orange, CA (2024, 15 clinicians with data). Median for this group: 1,142. Middle half: 428 to 1,790.
Fewer Medicare Part B services than 70% of clinicians listed under Ophthalmology in California (2024, 1,572 clinicians with data). Median for this group: 1,776. Middle half: 600 to 3,873.
Medicare-allowed amount
A lower Medicare-allowed amount than 70% of clinicians listed under Ophthalmology in Orange, CA (2024, 15 clinicians with data). Median for this group: $114,528. Middle half: $38,767 to $264,070.
A lower Medicare-allowed amount than 80% of clinicians listed under Ophthalmology in California (2024, 1,572 clinicians with data). Median for this group: $209,264. Middle half: $67,828 to $437,264.
Paid by Medicare
A lower Medicare payment amount than 70% of clinicians listed under Ophthalmology in Orange, CA (2024, 15 clinicians with data). Median for this group: $87,714. Middle half: $28,173 to $201,407.
A lower Medicare payment amount than 75% of clinicians listed under Ophthalmology in California (2024, 1,572 clinicians with data). Median for this group: $152,036. Middle half: $48,721 to $320,363.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Lyon are from 2021.
37 active clinicians are listed under Ophthalmology with a practice address in Orange, CA (2,902 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Orange
2.7% of these 37 clinicians have the CMS telehealth indicator.
59.5% of these 37 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services increased 35% from 512 in 2020 to 691 in 2024.
- 2020: 512
- 2021: 393
- 2022: 481
- 2023: 491
- 2024: 691
-
Medicare-allowed amount
Medicare-allowed amount increased 62% from $27,483 in 2020 to $44,474 in 2024.
- 2020: $27,483
- 2021: $22,315
- 2022: $27,986
- 2023: $28,663
- 2024: $44,474
-
Paid by Medicare
Paid by Medicare increased 65% from $20,687 in 2020 to $34,088 in 2024.
- 2020: $20,687
- 2021: $16,609
- 2022: $20,356
- 2023: $22,367
- 2024: $34,088
-
Medicare Part D prescriptions
Medicare Part D prescriptions went from 13 in 2017 to 12 in 2021.
- 2017: 13
- 2018: 12
- 2019: 23
- 2020: 12
- 2021: 12
-
30-day fills
30-day fills decreased 17% from 30 in 2017 to 25 in 2021.
- 2017: 30
- 2018: 22
- 2019: 46
- 2020: 27
- 2021: 25
-
Part D drug cost
Part D drug cost decreased 63% from $1,097 in 2017 to $406 in 2021.
- 2017: $1,097
- 2018: $739
- 2019: $726
- 2020: $216
- 2021: $406
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
92100
Multiple measurements of eye fluid pressure over an extended time period
|
103 | 21 | $346.26 | $96.06 |
|
97140
Therapy procedure using manual technique, each 15 minutes
|
99 | 20 | $321.46 | $22.17 |
|
97535
Training for self-care or home management, each 15 minutes
|
97 | 20 | $325.00 | $35.73 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
80 | 15 | $485.00 | $194.01 |
|
92020
Exam of the internal drainage system of eye
|
68 | 21 | $215.00 | $29.94 |
|
92283
Extended exam involving color vision testing
|
50 | 21 | $275.00 | $62.33 |
|
92083
Exam of visual field with extended testing
|
47 | 19 | $275.00 | $66.22 |
|
92201
Extended exam of the back part of the eye with retinal drawing
|
35 | 19 | $495.00 | $26.46 |
|
92202
Extended exam of the back part of the eye with optic nerve drawing
|
33 | 13 | $490.00 | $16.51 |
|
92082
Exam of visual field with intermediate testing
|
31 | 12 | $215.00 | $48.50 |
|
92060
Exam to measure eye deviation and range of motion
|
30 | 17 | $235.00 | $65.17 |
|
76514
Ultrasound scan of cornea to determine thickness
|
18 | 16 | $295.00 | $11.34 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 12 | 708 | $406.42 | โ |
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207W00000X
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPHTHALMOLOGY
I20090226000117
CA
3779649843
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Medical Genetics - Clinical Genetics (M.D.)
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Otolaryngology - Pediatric Otolaryngology
Doctor of Medicine (M.D.)
Otolaryngology
Doctor of Medicine (M.D.)
Medical Genetics - Clinical Genetics (M.D.)
Doctor of Medicine (M.D.)
Dermatology - Pediatric Dermatology
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Career & Practice History
NPI enumerated January 29, 2007.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Ophthalmology Specialists in Orange
- Dr. George Garcia, MD
- Dr. Kimberly Menezes, MD
- Eric Lee
- Dr. Samir Nazarali, MD
- Dr. Farnoosh Tinoosh, MD
- Dr. Daniel Azzam, MD
Mailing Address
1201 W La Veta Ave, 300
Orange, CA 928684213
Phone: 7147711144