Michael S. Chung, M.D.
Hematology & Oncology Physician · Torrance, CA
Michael S. Chung, M.D. is a hematology & oncology physician with a practice address in Torrance, California, and NPI 1053574608, issued on Jul 3, 2008. Check the license (California A112317, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael S. Chung
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A112317 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23600 Telo Ave Ste 260, Torrance, CA 90505
- Phone
- (424) 435-1037
- Enumerated
- Jul 3, 2008
- Record last updated
- Mar 1, 2024
- Fax
- (424) 435-1038
- Medicare enrollment
- Enrolled (PECOS I20130327000288); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 23600 Telo Ave Ste 260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Nguyen, M.D.Hematology & Oncology Physician1053846485
- Kathy You, FNP-BCFamily Nurse Practitioner1861924169
Verify Michael S. Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A112317Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,453 Medicare Part D claims for 261 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 17 claims were for opioids.
Most prescribed
- Anastrozole133 claims
- Prednisone80 claims
- Dexamethasone Sodium Phosphate78 claims
- Ondansetron Hcl77 claims
- Famotidine70 claims
- Diphenhydramine Hcl65 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: $7,116.86
324 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Cancer And Blood Specialty ClinicTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael S. Chung among 1,583 hematology & oncology physician records in California
Michael S. Chung, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2007 · median 2003 among the 1,124 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Torrance → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Arshad Ahad, MDTorrance, CA 905051487647293
- David Chan, MDTorrance, CA 905051972591378
- Amy CummingsTorrance, CA 905051043552243
- Vanessa Dickey, MDTorrance, CA 905051497742472
- Hugo Hool, MDTorrance, CA 905051417944489
- Syed Jilani, MDTorrance, CA 905051629067442
- Thomas Lowe, M.D.Torrance, CA 905051801968334
- Michael Nguyen, M.D.Torrance, CA 905051053846485
Common questions
What is Michael S. Chung, M.D.'s NPI number?
Michael S. Chung, M.D.'s National Provider Identifier (NPI) is 1053574608, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Chung, M.D. located?
The NPPES record lists a practice address at 23600 Telo Ave Ste 260, Torrance, CA, 90505. Phone: (424) 435-1037. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Chung, M.D.'s license?
NPPES lists California license number A112317, 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 Michael S. Chung, M.D. prescribe under Medicare Part D?
In 2024, Michael S. Chung, M.D. had 1,453 Medicare Part D claims for 261 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.