James R. Katz, M.D.
Cardiovascular Disease Physician · Los Angeles, CA
James R. Katz, M.D. is a cardiovascular disease physician with a practice address in Los Angeles, California, and NPI 1477578193, issued on Jul 13, 2006. Check the license (California G45640, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James R. Katz
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G45640 CA
Self-reported in NPPES; status is on the state search - Practice location
- 201 S Alvarado St, Los Angeles, CA 90057
- Phone
- (213) 484-4951
- Enumerated
- Jul 13, 2006
- Record last updated
- Jul 31, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (213) 484-4950
- Medicaid ID
- 00G456400 CA
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 201 S Alvarado St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anne Celona, PACPhysician Assistant1629199427
- John Chalison, MDPulmonary Disease Physician1215977780
- Daniel Chang, MDNeurology Physician1194761841
- Richard Dwyer, M.D.Gastroenterology Physician1366449969
Verify James R. Katz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G45640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $117.57
1 payment: food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
James R. Katz among 2,574 cardiovascular disease physician records in California
James R. Katz, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Los Angeles → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Narinder Batra, MDLos Angeles, CA 900571750307658
- Clifford Harris, M.D.Los Angeles, CA 900571942226832
- Mohinder Sohal, M.D.Los Angeles, CA 900571942491493
- Santos Uy, MDLos Angeles, CA 900571740290899
- Meir Yaron, M.D.Los Angeles, CA 900571528136447
- Robin Chand, M.D.Los Angeles, CA 900591811253495
- Laura Fisch, M.D.Los Angeles, CA 900591659371946
- James Pinney, M.D., PH.D.Los Angeles, CA 900591124480124
Common questions
What is James R. Katz, M.D.'s NPI number?
James R. Katz, M.D.'s National Provider Identifier (NPI) is 1477578193, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James R. Katz, M.D. located?
The NPPES record lists a practice address at 201 S Alvarado St, Los Angeles, CA, 90057. Phone: (213) 484-4951. Providers update this record themselves, so call before visiting.
How can I verify James R. Katz, M.D.'s license?
NPPES lists California license number G45640, 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.
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.