NPPES file of Aug 9, 2026

Assa Weinberg, MD

Rheumatology Physician · Los Angeles, CA

Assa Weinberg, MD is a rheumatology physician with a practice address in Los Angeles, California, and NPI 1528080090, issued on Jul 24, 2006. Check the license (California C41889, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528080090
Name
Assa Weinberg
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
C41889 CA
Self-reported in NPPES; status is on the state search
Practice location
6464 Sunset Blvd., #1010, Los Angeles, CA 90028
Phone
(323) 461-5858
Enumerated
Jul 24, 2006
Record last updated
Nov 21, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(323) 461-5852
Medicaid ID
00C418890 CA
Medicare enrollment
Enrolled (PECOS I20060123001066); 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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Verify Assa Weinberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C41889
    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

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2.5 times the Medicare Part D claims of the average rheumatology physician in 2024

4,947 Medicare Part D claims for 115 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 65 claims were for opioids.

  1. Assa Weinberg4,947
  2. Specialty average1,978

Most prescribed

  1. Atorvastatin Calcium314 claims
  2. Metformin Hcl167 claims
  3. Amlodipine Besylate165 claims
  4. Famotidine141 claims
  5. Levetiracetam128 claims
  6. Gabapentin123 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.

Industry payments in 2024: $22.31

1 payment: food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Assa Weinberg$22.31
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Assa Weinberg among 926 rheumatology physician records in California

Assa Weinberg, MD is one of 926 rheumatology physician records with a practice address in California. 81% 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 · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1974 · median 2003 among the 641 with a school on file
  • Record last updated2013 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Samy Farag, MDLos Angeles, CA 900271518932474
  2. Chiu Kao, MDLos Angeles, CA 900271639240526
  3. Jaclynn Levine, DOLos Angeles, CA 900271083118442
  4. Dinesh Shah, MDLos Angeles, CA 900271164599080
  5. Karen Au, MDLos Angeles, CA 900241144478306
  6. Masoom Modi, M.D.Los Angeles, CA 900241326377029
  7. Daniel Arkfeld, M.D.Los Angeles, CA 900331780610105
  8. Glenn Ehresmann, M.D.Los Angeles, CA 900331043248727

Common questions

What is Assa Weinberg, MD's NPI number?

Assa Weinberg, MD's National Provider Identifier (NPI) is 1528080090, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Assa Weinberg, MD located?

The NPPES record lists a practice address at 6464 Sunset Blvd., #1010, Los Angeles, CA, 90028. Phone: (323) 461-5858. Providers update this record themselves, so call before visiting.

How can I verify Assa Weinberg, MD's license?

NPPES lists California license number C41889, 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 Assa Weinberg, MD prescribe under Medicare Part D?

In 2024, Assa Weinberg, MD had 4,947 Medicare Part D claims for 115 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.