Dr. Warner Peng, MD

Dr. Peng practices at Hematology Oncology Specialists in Oxnard, California.

Dr. Peng's NPI, 1154584704, was assigned on July 3, 2008. Dr. Peng graduated from University of Kansas School of Medicine - Kansas City in 2008. Dr. Peng holds California license C167982.

Dr. Peng's primary practice is Hematology Oncology Specialists, at 1851 Lombard St, Oxnard, CA 93030 in Ventura County. The practice phone is (323) 264-0430.

Dr. Peng's primary practice is Hematology Oncology Specialists in Oxnard, California. Dr. Peng is also affiliated with Dignity Health - St. John's Regional Medical Center. The medical group on file is Hematology Oncology Specialists. Dmand AI also links Dr. Peng to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Peng practices, 3 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Peng's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Peng is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Peng's licenses on file in 2 states: California and Kansas.

Dmand AI lists breast cancer, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT), lung cancer, multiple myeloma and purpura and thrombocytopenia among the conditions Dr. Peng treats.

CMS data shows 52 Medicare services from Dr. Peng across 2 procedure codes in 2024, for 43 Medicare patients. Medicare paid $3,411 for them. Every service was in an office.

CMS counts 43 Medicare patients who saw Dr. Peng in 2024. The largest group is 65 to 74, with 22 patients. 70% of them have high blood pressure, and 63% have high cholesterol. Their average risk score is 1.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Peng's median patient age at 71, with 59% women.

In 2024, Dr. Peng wrote 2,675 Medicare Part D claims for 402 patients. 65% of them were for generic drugs. CMS names the drug for 2,329 of them, across 60 drugs with 11 or more claims each, at $6,962,289 in total drug cost. In 2023, CMS named 1,387 claims across 39 drugs.

Dr. Peng accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Peng as offering telehealth.

Dmand AI links 7 papers to Dr. Peng, published from 2014 to 2015. 2014 was the busiest year, with 3. Dr. Peng's most frequent co-authors are Baraa Al-Hafez, MD, Mohamad Ezzeldin, MD and Wei Feng, MD.

CMS Open Payments shows 941 general payments to Dr. Peng from 70 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,701.

Dr. Peng graduated from University of Kansas School of Medicine - Kansas City in 2008.

Dr. Peng is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and LA Care. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.