John Cheung, D.O.
Internal Medicine Physician · Lawndale, CA
John Cheung, D.O. is an internal medicine physician with a practice address in Lawndale, California, and NPI 1215364559, issued on Oct 1, 2013. Check the license (California 20A12955, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Cheung
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A12955 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15230 Hawthorne Blvd, Lawndale, CA 90260
- Phone
- (562) 922-5448
- Enumerated
- Oct 1, 2013
- Record last updated
- Aug 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200512003556); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 15230 Hawthorne Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frances Crisostomo, NPNurse Practitioner1770902413
Verify John Cheung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A12955Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
248 Medicare Part D claims for 95 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Pantoprazole Sodium17 claims
- Furosemide16 claims
- Amoxicillin-Clavulanate Potass11 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.
Industry payments in 2024: $141.14
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Asad U Khaja MD IncTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 internal medicine physician records list a practice address in Lawndale
They are 3 of the 270 NPPES records with a practice address in Lawndale, and 17,696 internal medicine physician records in California.
All 3 in Lawndale → All 17,696 in California → Every provider in Lawndale →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is John Cheung, D.O.'s NPI number?
John Cheung, D.O.'s National Provider Identifier (NPI) is 1215364559, issued on Oct 1, 2013. An NPI identifies a provider in billing; it is not a license.
Where is John Cheung, D.O. located?
The NPPES record lists a practice address at 15230 Hawthorne Blvd, Lawndale, CA, 90260. Phone: (562) 922-5448. Providers update this record themselves, so call before visiting.
How can I verify John Cheung, D.O.'s license?
NPPES lists California license number 20A12955, 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 John Cheung, D.O. prescribe under Medicare Part D?
In 2024, John Cheung, D.O. had 248 Medicare Part D claims for 95 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.
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.