NPPES file of Aug 9, 2026

Jennifer Chiu, M.D.

Internal Medicine Physician · Hawthorne, CA

Jennifer Chiu, M.D. is an internal medicine physician with a practice address in Hawthorne, California, and NPI 1962528430, issued on Mar 22, 2007. Check the license (California A 86974, 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
1962528430
Name
Jennifer Chiu
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A 86974 CA
Self-reported in NPPES; status is on the state search
Practice location
4455 W 117TH St Ste 300, Hawthorne, CA 90250
Phone
(310) 645-0444
Enumerated
Mar 22, 2007
Record last updated
Aug 2, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060314000791); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 1999
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 4455 W 117TH St Ste 300

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

  1. Julia Brewer, NPNurse Practitioner1578995502
  2. Aliza GonzalezSocial Worker1780215988
  3. Karlon Johnson, M.D.Family Medicine Physician1144325473
  4. Melissa Myles, PA-CPhysician Assistant1215130356
  5. Caitlin Outland, PA-CMedical Physician Assistant1508246067
  6. Lien Pham, PA-CPhysician Assistant1215319546

Verify Jennifer Chiu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A 86974    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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79% fewer Medicare Part D claims than the average internal medicine physician in 2024

682 Medicare Part D claims for 28 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 48 claims were for opioids.

  1. Jennifer Chiu682
  2. Specialty average3,176

Most prescribed

  1. Naproxen35 claims
  2. Gabapentin29 claims
  3. Celecoxib27 claims
  4. Hydrocodone-Acetaminophen27 claims
  5. Pantoprazole Sodium25 claims
  6. Sertraline Hcl24 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.

18 internal medicine physician records list a practice address in Hawthorne

They are 18 of the 818 NPPES records with a practice address in Hawthorne, and 17,696 internal medicine physician records in California.

All 18 in Hawthorne → All 17,696 in California → Every provider in Hawthorne →

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Jennifer Chiu, M.D.'s NPI number?

Jennifer Chiu, M.D.'s National Provider Identifier (NPI) is 1962528430, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Chiu, M.D. located?

The NPPES record lists a practice address at 4455 W 117TH St Ste 300, Hawthorne, CA, 90250. Phone: (310) 645-0444. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Chiu, M.D.'s license?

NPPES lists California license number A 86974, 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 Jennifer Chiu, M.D. prescribe under Medicare Part D?

In 2024, Jennifer Chiu, M.D. had 682 Medicare Part D claims for 28 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.