NPPES file of Aug 9, 2026

Joanna Juan Gan, M.D.

Neurology Physician · Los Angeles, CA

Joanna Juan Gan, M.D. is a neurology physician with a practice address in Los Angeles, California, and NPI 1063856185, issued on Apr 19, 2013. Check the license (California A124998, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063856185
Name
Joanna Juan Gan
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
A124998 CA
MD61690583 WA
Self-reported in NPPES; status is on the state search
Practice location
8730 Alden Drive, Los Angeles, CA 90048
Phone
(310) 248-6842
Enumerated
Apr 19, 2013
Record last updated
Aug 4, 2025
Medicare enrollment
Enrolled (PECOS I20240403003091); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 2011
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 8730 Alden Drive

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

  1. Itai Danovitch, ITAI DANOVITCHPsychiatry Physician1457575169
  2. Lillian Du, MDGastroenterology Physician1902453129
  3. Romana Dymkoski, D.O.Psychiatry Physician1235588260
  4. Juanita Ferjo, EDDPsychologist1750590634
  5. Barbara Hollander, RD, MDInternal Medicine Physician1003256892
  6. Tara Klein, MDPsychiatry Physician1477765162

Verify Joanna Juan Gan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A124998
    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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Bills Medicare through one group practice

  1. Cep America - Neurology PCModesto, CA

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

Joanna Juan Gan among 2,339 neurology physician records in California

Joanna Juan Gan, 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 2013, is newer than 69% of them.

  • NPI issued2013 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2011 · median 2006 among the 1,628 with a school on file
  • Record last updated2025 · 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. Cameron Adams, M.D.West Hollywood, CA 900481346247392
  2. Karen Altman, MDWest Hollywood, CA 900481518912211
  3. Robert Baloh, MD PHDWest Hollywood, CA 900481164440699
  4. Andrew Blumenfeld, M.D.Los Angeles, CA 900481164459913
  5. Yvette Bordelon, MDLos Angeles, CA 900481922023449
  6. Maria Brickman, M.D.Los Angeles, CA 900481538107230
  7. Jeffrey Chung, MDWest Hollywood, CA 900481437106366
  8. Douglas Davies, M.D.Los Angeles, CA 900481326073222

Common questions

What is Joanna Juan Gan, M.D.'s NPI number?

Joanna Juan Gan, M.D.'s National Provider Identifier (NPI) is 1063856185, issued on Apr 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Joanna Juan Gan, M.D. located?

The NPPES record lists a practice address at 8730 Alden Drive, Los Angeles, CA, 90048. Phone: (310) 248-6842. Providers update this record themselves, so call before visiting.

How can I verify Joanna Juan Gan, M.D.'s license?

NPPES lists California license number A124998, 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.

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.