Harold J. Katzman, MD
Ophthalmology Physician · Los Angeles, CA
Harold J. Katzman, MD is an ophthalmology physician with a practice address in Los Angeles, California, and NPI 1205859329, issued on Jul 26, 2006. Check the license (California G13945, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Harold J. Katzman
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G13945 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4403 S Vermont Ave, Los Angeles, CA 90037
- Phone
- (323) 232-1234
- Enumerated
- Jul 26, 2006
- Record last updated
- Jan 16, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (323) 232-3789
- Medicaid IDs
- GR0101230 CA
GSD004850 CA - Entity
- Type 1 · individual
Also registered at 4403 S Vermont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sylvia Arcos, ODOptometrist1336207232
- Parinder Dhillon, O.D.Optometrist1053687764
- Ann Duong, ODOptometrist1750397691
- Virginia Estrada, ODOptometrist1679728927
- Lilia Gelfand, ODOptometrist1063560076
- Miguel Guerrero, ODOptometrist1659387595
Verify Harold J. Katzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G13945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average ophthalmology physician in 2024
26 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 0% of 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.
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
Other ophthalmology physician records in California
- Sam Abbassi, MD, MSWest Hills, CA1881937720
- Richard Abbott, M.D.San Francisco, CA1346276573
- Jean-Paul Abboud, M.D., PH.D.Del Mar, CA1760776728
- Nizar Abdelfattah, MDPasadena, CA1801359393
- Parastou Abedi, MDAliso Viejo, CA1720067333
- Shahla Abedi, MDAliso Viejo, CA1467431072
- Lilit Ablabutyan, M.D.Glendale, CA1497013064
- Nathan Abraham, M.D.Valencia, CA1306224456
- James Abrams, M.D.San Bruno, CA1912903329
- Adam Abroms, MDWestlake Village, CA1497743702
Common questions
What is Harold J. Katzman, MD's NPI number?
Harold J. Katzman, MD's National Provider Identifier (NPI) is 1205859329, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harold J. Katzman, MD located?
The NPPES record lists a practice address at 4403 S Vermont Ave, Los Angeles, CA, 90037. Phone: (323) 232-1234. Providers update this record themselves, so call before visiting.
How can I verify Harold J. Katzman, MD's license?
NPPES lists California license number G13945, 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 Harold J. Katzman, MD prescribe under Medicare Part D?
In 2024, Harold J. Katzman, MD had 26 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.