NPPES file of Aug 9, 2026

David J. Rubenstein, M.D.

Diagnostic Radiology Physician · Tarzana, CA

David J. Rubenstein, M.D. is a diagnostic radiology physician with a practice address in Tarzana, California, and NPI 1235179219, issued on Jun 7, 2006. Check the license (California A40548, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235179219
Name
David J. Rubenstein
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A40548 CA
Self-reported in NPPES; status is on the state search
Practice location
18321 Clark St, Tarzana, CA 91356
Phone
(818) 708-5470
Enumerated
Jun 7, 2006
Record last updated
Nov 27, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(818) 342-6385
Medicaid ID
00A405480 CA
Medicare enrollment
Enrolled (PECOS I20050707001061); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 18321 Clark St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eric Abkian, MDInternal Medicine Physician1750841920
  2. Sheriff AbuduHospitalist Physician1770978298
  3. Mohammad Abuzaineh, M.D.Anesthesiology Physician1992712806
  4. Amir Ahmed, MDHospitalist Physician1306425640
  5. Celia Alconcel, M.D.Neonatal-Perinatal Medicine Physician1982615654
  6. Nathan AlyeshInternal Medicine Physician1417362856

Verify David J. Rubenstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A40548
    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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No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Beverly Radiology Medical Group IIIBeverly Hills, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David J. Rubenstein among 4,500 diagnostic radiology physician records in California

David J. Rubenstein, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1981 · median 2004 among the 3,130 with a school on file
  • Record last updated2007 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Jack Chen, M.D.Tarzana, CA 913561134169139
  2. Lawrence Chespak, M.D.Tarzana, CA 913561437198058
  3. Leroy Clark, M.D.Tarzana, CA 913561982643508
  4. Jerald Einziger, M.D.Tarzana, CA 913561861448268
  5. Richard Gritz, M.D.Tarzana, CA 913561548200637
  6. Mark Rockoff, M.D.Tarzana, CA 913561679513857
  7. Rolf Arndt, MDValencia, CA 913551508811803
  8. Joshua Hanelin, M.D.Valencia, CA 913551194928770

Common questions

What is David J. Rubenstein, M.D.'s NPI number?

David J. Rubenstein, M.D.'s National Provider Identifier (NPI) is 1235179219, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David J. Rubenstein, M.D. located?

The NPPES record lists a practice address at 18321 Clark St, Tarzana, CA, 91356. Phone: (818) 708-5470. Providers update this record themselves, so call before visiting.

How can I verify David J. Rubenstein, M.D.'s license?

NPPES lists California license number A40548, 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.

What is David J. Rubenstein, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.