John Shen, M.D.
Hematology & Oncology Physician · Los Angeles, CA
John Shen, M.D. is a hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1104183631, issued on Apr 23, 2012. Check the license (California A128805, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Shen
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A128805 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Med Plaza, Los Angeles, CA 90045
- Phone
- (818) 995-8044
- Enumerated
- Apr 23, 2012
- Record last updated
- Aug 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 200 Med Plaza
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Priyam Tripathi, M.D.Gastroenterology Physician1235498361
Verify John Shen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A128805Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,094 Medicare Part D claims for 151 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Abiraterone Acetate205 claims
- Erleada177 claims
- Prednisone145 claims
- Nubeqa137 claims
- Xtandi119 claims
- Orgovyx85 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: $8,451.67
18 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Global Services, LLC. 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.
John Shen among 1,583 hematology & oncology physician records in California
John Shen, 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 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2018 · 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 Los Angeles → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Frank Mori, M.D.La, CA 900451396760328
- Wade Nishimoto, M.D.Los Angeles, CA 900451083641518
- Allan Orenstein, M.D.La, CA 900451780619882
- Maria Delioukina, MDWest Hollywood, CA 900481023035078
- Charles Forscher, MDLos Angeles, CA 900481235239088
- Richard Gould, MDWest Hollywood, CA 900481194743385
- Leonid Kleynberg, M.D.Los Angeles, CA 900481891750212
- Vera Kleynberg, M.D.Los Angeles, CA 900481568428324
Common questions
What is John Shen, M.D.'s NPI number?
John Shen, M.D.'s National Provider Identifier (NPI) is 1104183631, issued on Apr 23, 2012. An NPI identifies a provider in billing; it is not a license.
Where is John Shen, M.D. located?
The NPPES record lists a practice address at 200 Med Plaza, Los Angeles, CA, 90045. Phone: (818) 995-8044. Providers update this record themselves, so call before visiting.
How can I verify John Shen, M.D.'s license?
NPPES lists California license number A128805, 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 Shen, M.D. prescribe under Medicare Part D?
In 2024, John Shen, M.D. had 1,094 Medicare Part D claims for 151 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.