NPPES file of Aug 9, 2026

Irving Malis, M.D.

Urology Physician · Calabasas, CA

Irving Malis, M.D. is a urology physician with a practice address in Calabasas, California, and NPI 1104263540, issued on May 24, 2013. Check the license (California A21089, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1104263540
Name
Irving Malis
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
A21089 CA
Self-reported in NPPES; status is on the state search
Practice location
23312 Park Hacienda, Calabasas, CA 91302
Phone
(818) 426-8700
Enumerated
May 24, 2013
Record last updated
May 24, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(267) 629-7055
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Irving Malis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A21089
    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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Irving Malis among 1,524 urology physician records in California

Irving Malis, M.D. is one of 1,524 urology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2013, is newer than 75% of them.

  • NPI issued2013 · 75% of these records are older, 22% newer
  • In a Medicare fileNo · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2013 · 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 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in California

There are 1,524 urology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 urology physician records with the nearest ZIP codes

  1. Harley Wishner, M.D.Calabasas, CA 913021245378819
  2. Floyd Katske, M.D.Newhall, CA 913211346340809
  3. Robert Klein, MDNorthridge, CA 913251386715498
  4. Elise Perer, MDNorthridge, CA 913251578577664
  5. Jacinto Rios, M.D.Northridge, CA 913251538243829
  6. Jacob Rubin, MDPorter Ranch, CA 913261396207395
  7. Youssef Youssef, MDPorter Ranch, CA 913261154513950
  8. Sevan Stepanian, M.D.Santa Clarita, CA 913501790941029

Common questions

What is Irving Malis, M.D.'s NPI number?

Irving Malis, M.D.'s National Provider Identifier (NPI) is 1104263540, issued on May 24, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Irving Malis, M.D. located?

The NPPES record lists a practice address at 23312 Park Hacienda, Calabasas, CA, 91302. Phone: (818) 426-8700. Providers update this record themselves, so call before visiting.

How can I verify Irving Malis, M.D.'s license?

NPPES lists California license number A21089, 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. 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.