Vishwanath Ganesan, MD
Hematology & Oncology Physician · Los Angeles, CA
Vishwanath Ganesan, MD is a hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1679156368, issued on Apr 30, 2021. Check the license (California A196657, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Vishwanath Ganesan
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A196657 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1441 Eastlake Ave Los Angeles CA 90089, Los Angeles, CA 90089
- Phone
- (800) 872-2273
- Enumerated
- Apr 30, 2021
- Record last updated
- Jan 22, 2025
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify Vishwanath Ganesan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A196657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
586 Medicare Part D claims for 78 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium55 claims
- Amlodipine Besylate36 claims
- Losartan Potassium29 claims
- Metformin Hcl26 claims
- Gabapentin18 claims
- Lisinopril16 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: $641.28
15 payments; by number, the most common kind was food and beverage; the largest payer was Aadi Bioscience, 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.
Vishwanath Ganesan among 1,583 hematology & oncology physician records in California
Vishwanath Ganesan, MD 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 2021, is newer than 98% of them.
- NPI issued2021 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2025 · 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
- Preet Chaudhary, M.D., PHDLos Angeles, CA 900891487626354
- Gino In, MDLos Angeles, CA 900891912227273
- Kevin Kelly, M.D.Los Angeles, CA 900891093963712
- Howard Liebman, M.D.Los Angeles, CA 900891134159775
- Ann Mohrbacher, M.D.Los Angeles, CA 900891275578957
- Jorge Nieva, M.D.Los Angeles, CA 900891497717672
- Casey O'Connell, M.D.Los Angeles, CA 900891104039197
- Raghuveer Ranganathan, M.D.Los Angeles, CA 900891831354356
Common questions
What is Vishwanath Ganesan, MD's NPI number?
Vishwanath Ganesan, MD's National Provider Identifier (NPI) is 1679156368, issued on Apr 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Vishwanath Ganesan, MD located?
The NPPES record lists a practice address at 1441 Eastlake Ave Los Angeles CA 90089, Los Angeles, CA, 90089. Phone: (800) 872-2273. Providers update this record themselves, so call before visiting.
How can I verify Vishwanath Ganesan, MD's license?
NPPES lists California license number A196657, 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 Vishwanath Ganesan, MD prescribe under Medicare Part D?
In 2024, Vishwanath Ganesan, MD had 586 Medicare Part D claims for 78 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.