NPPES file of Aug 9, 2026

Jessica Hwei-Jay Fan, MD

Neurology Physician · Oakland, CA

Jessica Hwei-Jay Fan, MD is a neurology physician with a practice address in Oakland, California, and NPI 1619407707, issued on Jun 12, 2017. Check the license (California A171710, 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
1619407707
Name
Jessica Hwei-Jay Fan
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
A171710 CA
Self-reported in NPPES; status is on the state search
Practice location
3701 Broadway FL 1, Oakland, CA 94611
Phone
(510) 752-6509
Enumerated
Jun 12, 2017
Record last updated
Aug 31, 2022
Medicare enrollment
Enrolled (PECOS I20210726003452); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2017
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 3701 Broadway FL 1

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

  1. Kyle Menze, D.O.Pediatric Rehabilitation Medicine Physician1346528742
  2. Christi Ng, MDPediatric Rehabilitation Medicine Physician1346746211
  3. Lynn Zhang, M.D.Neurology Physician1669767554

Verify Jessica Hwei-Jay Fan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A171710
    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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5% more Medicare Part D claims than the average neurology physician in 2024

1,444 Medicare Part D claims for 321 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 32 claims were for opioids.

  1. Jessica Fan1,444
  2. Specialty average1,370

Most prescribed

  1. Carbidopa-Levodopa177 claims
  2. Levetiracetam96 claims
  3. Gabapentin94 claims
  4. Propranolol Hcl Er77 claims
  5. Lorazepam62 claims
  6. Carbidopa-Levodopa Er61 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. Permanente Medical Group IncOakland, CA

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

Jessica Hwei-Jay Fan among 2,339 neurology physician records in California

Jessica Hwei-Jay Fan, 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 2017, is newer than 81% of them.

  • NPI issued2017 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2017 · median 2006 among the 1,628 with a school on file
  • Record last updated2022 · 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. Garrick Amgott-Kwan, MDOakland, CA 946111295813061
  2. Bret Andrews, DOOakland, CA 946111669550463
  3. Atefeh Hosseini, MDOakland, CA 946111508916321
  4. Prateek Thatikunta, M.D.Oakland, CA 946111093246670
  5. Bowen Wong, MDOakland, CA 946111114986742
  6. Iris Yung, MDOakland, CA 946111013183813
  7. Lynn Zhang, M.D.Oakland, CA 946111669767554
  8. Frederic Newton, M.D.Oakland, CA 946121235274192

Common questions

What is Jessica Hwei-Jay Fan, MD's NPI number?

Jessica Hwei-Jay Fan, MD's National Provider Identifier (NPI) is 1619407707, issued on Jun 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Hwei-Jay Fan, MD located?

The NPPES record lists a practice address at 3701 Broadway FL 1, Oakland, CA, 94611. Phone: (510) 752-6509. Providers update this record themselves, so call before visiting.

How can I verify Jessica Hwei-Jay Fan, MD's license?

NPPES lists California license number A171710, 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 Jessica Hwei-Jay Fan, MD prescribe under Medicare Part D?

In 2024, Jessica Hwei-Jay Fan, MD had 1,444 Medicare Part D claims for 321 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.