John D. McCarthy Jr.

John McCarthy practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.

John McCarthy's NPI, 1679650923, was assigned on November 1, 2006. John McCarthy graduated from David Geffen School of Medicine at UCLA in 1981. John McCarthy holds California license G49282.

John McCarthy's primary practice is PIH Health Whittier Hospital, at 12401 Washington Blvd, Whittier, CA 90602 in Los Angeles County. The practice phone is (562) 698-0811.

John McCarthy's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. John McCarthy is also affiliated with Whittier Hospital Medical Center. Dmand AI also links John McCarthy to 1 more hospital and 1 physician office, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where John McCarthy practices, 4 sites in all. Vendor and product names are available with a free account.

Infectious disease is John McCarthy's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. John McCarthy is board certified in infectious disease by the American Board of Internal Medicine. John McCarthy is licensed in California.

Dmand AI lists acute skin infection, bronchitis, endocarditis, hiv/aids and joint or bone infection among the conditions John McCarthy treats.

CMS data shows 1,168 Medicare services from John McCarthy across 7 procedure codes in 2024, for 188 Medicare patients. Medicare paid $89,178 for them.

CMS counts 188 Medicare patients who saw John McCarthy in 2024. The largest group is 75 to 84, with 58 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 4.15, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts John McCarthy's median patient age at 69, with 45% women.

In 2024, John McCarthy wrote 1,337 Medicare Part D claims for 123 patients. 83% of them were for generic drugs. CMS names the drug for 1,047 of them, across 35 drugs with 11 or more claims each, at $551,936 in total drug cost. In 2023, CMS named 1,140 claims across 41 drugs.

John McCarthy accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 46 general payments to John McCarthy from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 60% of the total. ViiV Healthcare Company paid the most, $278.

Dmand AI lists 1 award for John McCarthy.

John McCarthy graduated from David Geffen School of Medicine at UCLA in 1981.

John McCarthy is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.