Louis J. Katzman, M.D.
Surgery Physician · San Diego, CA
Louis J. Katzman, M.D. is a surgery physician with a practice address in San Diego, California, and NPI 1194835058, issued on Aug 30, 2006. Check the license (California G27392, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Louis J. Katzman
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G27392 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6071 Via Regla, San Diego, CA 92122
- Phone
- (619) 444-5917
- Enumerated
- Aug 30, 2006
- Record last updated
- May 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (619) 444-1740
- Medicaid ID
- 00G273920 CA
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Verify Louis J. Katzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G27392Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average surgery physician in 2024
20 Medicare Part D claims, against an average of 147 among the 20,115 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.
Louis J. Katzman among 3,118 surgery physician records in California
Louis J. Katzman, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in San Diego → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Erika Baird, MDSan Diego, CA 921221396372272
- Andrew Barnes, MDSan Diego, CA 921221457928301
- Rebeca Dominguez Profeta, MDSan Diego, CA 921221134748098
- Ana Garcia CabreraSan Diego, CA 921221205330354
- James Reeves, MDSan Diego, CA 921221174059257
- Charles Theuer, MDSan Diego, CA 921221376185116
- Jonathan Unkart, M.D.San Diego, CA 921221255686648
- Jason Xia, MDSan Diego, CA 921221194286625
Common questions
What is Louis J. Katzman, M.D.'s NPI number?
Louis J. Katzman, M.D.'s National Provider Identifier (NPI) is 1194835058, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Louis J. Katzman, M.D. located?
The NPPES record lists a practice address at 6071 Via Regla, San Diego, CA, 92122. Phone: (619) 444-5917. Providers update this record themselves, so call before visiting.
How can I verify Louis J. Katzman, M.D.'s license?
NPPES lists California license number G27392, 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 Louis J. Katzman, M.D. prescribe under Medicare Part D?
In 2024, Louis J. Katzman, M.D. had 20 Medicare Part D claims; the average among surgery physician prescribers was 147. 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.