NPPES file of Aug 9, 2026

Ronald E. Lieberman, M.D.

Emergency Medicine Physician · Los Angeles, CA

Ronald E. Lieberman, M.D. is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1427004621, issued on May 26, 2006. Check the license (California A83884, 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
1427004621
Name
Ronald E. Lieberman
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A83884 CA
Self-reported in NPPES; status is on the state search
Practice location
1225 Wilshire Boulevard, Los Angeles, CA 90017
Phone
(213) 977-2423
Enumerated
May 26, 2006
Record last updated
Nov 4, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(213) 202-7028
Medicaid ID
00A838840 CA
Medicare enrollment
Enrolled (PECOS I20040927000690); 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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8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →

Also registered at 1225 Wilshire Boulevard

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

  1. Jack Fuller, PA-CPhysician Assistant1376596668
  2. Brian Harris, M.D.Emergency Medicine Physician1285687574
  3. John Hatherley, M.D.Emergency Medicine Physician1164476883
  4. Melvin Jackson, MDEmergency Medicine Physician1922049295
  5. Robert Kerns, M.D.Emergency Medicine Physician1144274168
  6. Robert Kloner, M.D.Specialist1952477499

Verify Ronald E. Lieberman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A83884    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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8% fewer Medicare Part D claims than the average emergency medicine physician in 2024

209 Medicare Part D claims for 126 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 19 claims were for opioids.

  1. Ronald Lieberman209
  2. Specialty average226

Most prescribed

  1. Cephalexin33 claims
  2. Ondansetron Odt24 claims
  3. Prednisone21 claims
  4. Oxycodone-Acetaminophen17 claims
  5. Albuterol Sulfate Hfa13 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: $95.73

5 payments; by number, the most common kind was food and beverage; the largest payer was iRhythm Technologies, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ronald Lieberman$95.73
  2. Specialty average$953.79

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

Bills Medicare through 3 group practices

  1. Can Emergency Physicians Medical Group IncNorwalk, CA
  2. Hawaii Emergency Physicians Associated IncKamuela, HI
  3. Pacific Redwood Medical Group IncUkiah, CA

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

Ronald E. Lieberman among 7,751 emergency medicine physician records in California

Ronald E. Lieberman, M.D. is one of 7,751 emergency medicine 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1999 · median 2011 among the 4,560 with a school on file
  • Record last updated2009 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

All 7,751 in California → Every provider in Los Angeles → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Elisa Aponte, M.D.Los Angeles, CA 900171518134634
  2. Won Ki Chae, MDLos Angeles, CA 900171376789701
  3. Pao Chiu, M.D.Los Angeles, CA 900171285686592
  4. Carl Chudnofsky, MDLos Angeles, CA 900171811958556
  5. Brian Harris, M.D.Los Angeles, CA 900171285687574
  6. John Hatherley, M.D.Los Angeles, CA 900171164476883
  7. Melvin Jackson, MDLos Angeles, CA 900171922049295
  8. Marynell Jelinek, M.D.Los Angeles, CA 900171487687828

Common questions

What is Ronald E. Lieberman, M.D.'s NPI number?

Ronald E. Lieberman, M.D.'s National Provider Identifier (NPI) is 1427004621, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald E. Lieberman, M.D. located?

The NPPES record lists a practice address at 1225 Wilshire Boulevard, Los Angeles, CA, 90017. Phone: (213) 977-2423. Providers update this record themselves, so call before visiting.

How can I verify Ronald E. Lieberman, M.D.'s license?

NPPES lists California license number A83884, 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 Ronald E. Lieberman, M.D. prescribe under Medicare Part D?

In 2024, Ronald E. Lieberman, M.D. had 209 Medicare Part D claims for 126 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.