NPPES file of Aug 9, 2026

Christopher Lyon, PH.D,MD

Ophthalmology Physician · Orange, CA

Christopher Lyon, PH.D,MD is an ophthalmology physician with a practice address in Orange, California, and NPI 1649316753, issued on Jan 29, 2007. Check the license (California A37277, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649316753
Name
Christopher Lyon
Credential
PH.D,MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A37277 CA
Self-reported in NPPES; status is on the state search
Practice location
1201 W LA Veta Ave, Orange, CA 92868
Phone
(714) 771-1144
Enumerated
Jan 29, 2007
Record last updated
Oct 24, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(714) 771-6785
Medicare enrollment
Enrolled (PECOS I20090226000117); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1201 W LA Veta Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah AbbamontoClinical Social Worker1396268553
  2. Yesenia Acosta, ACSWClinical Social Worker1114744513
  3. Natalie Adame, PNPPrimary Care Nurse Practitioner1750993622
  4. David Adams, M.D.Neurology with Special Qualifications in Child Neurology Physician1497109722
  5. William Adelman, M.D.Pediatric Adolescent Medicine Physician1831191386
  6. Isela Aguirre Verdugo, LCSWClinical Social Worker1316465834

Verify Christopher Lyon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A37277
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average ophthalmology physician in 2024

27 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 74% of claims.

  1. Christopher Lyon27
  2. Specialty average1,518

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Christopher Lyon among 2,899 ophthalmology physician records in California

Christopher Lyon, PH.D,MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.

  • NPI issued2007 · 55% of these records are older, 33% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1989 · median 2001 among the 1,907 with a school on file
  • Record last updated2008 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Rahul Bhola, M.D.Orange, CA 928681609910033
  2. Swaraj Bose, MDOrange, CA 928681285714360
  3. Michael V Drake, MDOrange, CA 928681356421499
  4. Babak Fardin, MDOrange, CA 928681174553424
  5. George Garcia, M.D.Orange, CA 928681437175262
  6. Laura Howard, M.D.Orange, CA 928681194934109
  7. Linda Lippa, MDOrange, CA 928681245310499
  8. Althea Molarte, M.D.Orange, CA 928681265543763

Common questions

What is Christopher Lyon, PH.D,MD's NPI number?

Christopher Lyon, PH.D,MD's National Provider Identifier (NPI) is 1649316753, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Lyon, PH.D,MD located?

The NPPES record lists a practice address at 1201 W LA Veta Ave, Orange, CA, 92868. Phone: (714) 771-1144. Providers update this record themselves, so call before visiting.

How can I verify Christopher Lyon, PH.D,MD's license?

NPPES lists California license number A37277, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher Lyon, PH.D,MD prescribe under Medicare Part D?

In 2024, Christopher Lyon, PH.D,MD had 27 Medicare Part D claims; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.