NPPES file of Aug 9, 2026

Helena Chang Chui, M.D.

Neurology Physician · Los Angeles, CA

Helena Chang Chui, M.D. is a neurology physician with a practice address in Los Angeles, California, and NPI 1629001086, issued on Jul 9, 2006. Check the license (California G45721, 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
1629001086
Name
Helena Chang Chui
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
G45721 CA
Self-reported in NPPES; status is on the state search
Practice location
1520 San Pablo St, Los Angeles, CA 90033
Phone
(323) 442-5710
Enumerated
Jul 9, 2006
Record last updated
Nov 21, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(323) 442-5736
Medicaid ID
00G457210 CA
Medicare enrollment
Enrolled (PECOS I20090616000779); accepts Medicare assignment
Medical or professional school
Johns Hopkins University School Of Medicine, 1977
Telehealth
Offers telehealth (CMS)
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 1520 San Pablo St

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

  1. Frank Acosta, PHDPsychologist1750313490
  2. Gbemisola Adenuga, M.D.Nephrology Physician1952464661
  3. Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
  4. Haig Aharonian, M.D.Internal Medicine Physician1205107653
  5. Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
  6. Mohammad Akmal, M.D.Nephrology Physician1356378087

Verify Helena Chang Chui in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G45721
    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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81% fewer Medicare Part D claims than the average neurology physician in 2024

258 Medicare Part D claims for 81 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Helena Chui258
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl75 claims
  2. Escitalopram Oxalate46 claims
  3. Memantine Hcl16 claims
  4. Mirtazapine11 claims
  5. Trazodone Hcl11 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.

Bills Medicare through one group practice

  1. Usc Care Medical Group IncLos Angeles, CA

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

Helena Chang Chui among 2,339 neurology physician records in California

Helena Chang Chui, M.D. 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 fileYes · 70% of these records are
  • Graduated1977 · median 2006 among the 1,628 with a school on file
  • Record last updated2013 · 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. Margaret Burnett, M.D.Los Angeles, CA 900331679500904
  2. Francisco Gonzalez-Scarano, MDLos Angeles, CA 900331063446722
  3. Jennifer Hui, M.D.Los Angeles, CA 900331730123837
  4. Norman Kachuck, M.D.Los Angeles, CA 900331811938525
  5. Mark Lew, M.D.Los Angeles, CA 900331578507505
  6. Patrick Lyden, M.D.Los Angeles, CA 900331215962113
  7. Giselle Petzinger, M.D.Los Angeles, CA 900331003857715
  8. John Ringman, MDLos Angeles, CA 900331265451173

Common questions

What is Helena Chang Chui, M.D.'s NPI number?

Helena Chang Chui, M.D.'s National Provider Identifier (NPI) is 1629001086, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Helena Chang Chui, M.D. located?

The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5710. Providers update this record themselves, so call before visiting.

How can I verify Helena Chang Chui, M.D.'s license?

NPPES lists California license number G45721, 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 Helena Chang Chui, M.D. prescribe under Medicare Part D?

In 2024, Helena Chang Chui, M.D. had 258 Medicare Part D claims for 81 beneficiaries; the average among neurology physician prescribers was 1,370. 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.