Michael Owen Gadsby, M.D.
Ophthalmology Physician · Los Angeles, CA
Michael Owen Gadsby, M.D. is an ophthalmology physician with a practice address in Los Angeles, California, and NPI 1457549941, issued on Oct 9, 2007. Check the license (California G77223, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Owen Gadsby
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G77223 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8717 LA Tijera Blvd, Los Angeles, CA 90045
- Phone
- (310) 674-2895
- Enumerated
- Oct 9, 2007
- Record last updated
- May 31, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 8717 LA Tijera Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Jack, M.D.Ophthalmology Physician1154338515
Verify Michael Owen Gadsby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average ophthalmology physician in 2024
105 Medicare Part D claims for 57 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Neomycin-Polymyxin-Dexameth31 claims
- Ketorolac Tromethamine11 claims
- Latanoprost11 claims
- Prednisolone Acetate11 claims
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.
Michael Owen Gadsby among 2,899 ophthalmology physician records in California
Michael Owen Gadsby, M.D. 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 fileNo · 66% of these records are
- Record last updated2012 · 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.
All 2,899 in California → Every provider in Los Angeles → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Robert Jack, M.D.Los Angeles, CA 900451154338515
- Michael Berlin, MDWest Hollywood, CA 900481528048584
- Melinda Hakim, MDLos Angeles, CA 900481588687867
- Amy Jain, MDLos Angeles, CA 900481558624874
- David Katzin, M.D.Los Angeles, CA 900481699799601
- Jonathan Macy, MDLos Angeles, CA 900481922020205
- Ezra Maguen, MDLos Angeles, CA 900481518989938
- Barak Maguen, MDLos Angeles, CA 900481891979274
Common questions
What is Michael Owen Gadsby, M.D.'s NPI number?
Michael Owen Gadsby, M.D.'s National Provider Identifier (NPI) is 1457549941, issued on Oct 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael Owen Gadsby, M.D. located?
The NPPES record lists a practice address at 8717 LA Tijera Blvd, Los Angeles, CA, 90045. Phone: (310) 674-2895. Providers update this record themselves, so call before visiting.
How can I verify Michael Owen Gadsby, M.D.'s license?
NPPES lists California license number G77223, 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 Michael Owen Gadsby, M.D. prescribe under Medicare Part D?
In 2024, Michael Owen Gadsby, M.D. had 105 Medicare Part D claims for 57 beneficiaries; 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.