Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Christopher Lyon, PHD, MD

Individual provider Ophthalmology Physician · NPI 1649316753

Dr. Christopher Lyon, PHD, MD practises Ophthalmology in Orange, California. Qualified in 1989, 37 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Licensed in
CA
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1201 W La Veta Ave 300
Orange, CA 92868-4213 Not confirmed with CMS for 18 years — call before visiting
Phone: (714) 771-1144
Fax: (714) 771-6785
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence A37277 (CA)
Surgery Physician Taxonomy 208600000X · Licence A37277 (CA)

Record details

NPI number1649316753
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , MD
Sole proprietorYes
NPI enumeratedJanuary 29, 2007
Last updated in NPPESOctober 24, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Also practisesPHYSICAL MEDICINE AND REHABILITATION
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients21
Services billed 711 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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