NPPES file of Aug 9, 2026

Ronnie Bergen, MD

Neurology Physician · Los Angeles, CA

Ronnie Bergen, MD is a neurology physician with a practice address in Los Angeles, California, and NPI 1750353488, issued on Feb 6, 2006. Check the license (California G146479, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750353488
Name
Ronnie Bergen
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
G146479 CA
Self-reported in NPPES; status is on the state search
Practice location
221 Westwood Plz, Los Angeles, CA 90095
Phone
(310) 794-1195
Enumerated
Feb 6, 2006
Record last updated
Jan 15, 2026
Fax
(310) 983-1172
Medicaid ID
073841 AZ
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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Also registered at 221 Westwood Plz

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

  1. Mark Ackerman, MDInternal Medicine Physician1144225046
  2. Fara Anzures, NPFamily Nurse Practitioner1659498640
  3. Clare Aveytia, RNRegistered Nurse1326893124
  4. Miguel Bonoan, MSN, RN, PMHNP-BCCollege Health Registered Nurse1598510596
  5. Aileen Castillo, NPFamily Nurse Practitioner1265659056
  6. Charlie ChampionClinical Psychologist1679128003

Verify Ronnie Bergen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G146479
    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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62% fewer Medicare Part D claims than the average neurology physician in 2024

516 Medicare Part D claims for 105 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Ronnie Bergen516
  2. Specialty average1,370

Most prescribed

  1. Gabapentin76 claims
  2. Carbidopa-Levodopa52 claims
  3. Donepezil Hcl33 claims
  4. Levetiracetam24 claims
  5. Pregabalin24 claims
  6. Primidone21 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 88 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.6
  2. Costout of 100 · 30%58.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Ronnie Bergen among 2,339 neurology physician records in California

Ronnie Bergen, MD is one of 2,339 neurology 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, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. David Alexander, M.D.Los Angeles, CA 900951154371334
  2. Robert Baloh, MDLos Angeles, CA 900951801811252
  3. Timothy Cloughesy, MDLos Angeles, CA 900951154356053
  4. Robert Collins, MDLos Angeles, CA 900951871518233
  5. Jeffrey Cummings, MDLos Angeles, CA 900951457376329
  6. Dawn Eliashiv, M.D.Los Angeles, CA 900951144286162
  7. Neeta Garg, MDLos Angeles, CA 900951649242728
  8. Peyman Golshani, M.D.Los Angeles, CA 900951235177791

Common questions

What is Ronnie Bergen, MD's NPI number?

Ronnie Bergen, MD's National Provider Identifier (NPI) is 1750353488, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronnie Bergen, MD located?

The NPPES record lists a practice address at 221 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 794-1195. Providers update this record themselves, so call before visiting.

How can I verify Ronnie Bergen, MD's license?

NPPES lists California license number G146479, 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 Ronnie Bergen, MD prescribe under Medicare Part D?

In 2024, Ronnie Bergen, MD had 516 Medicare Part D claims for 105 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Ronnie Bergen, MD's MIPS final score?

The 2023 MIPS final score is 88 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.