Dr. Paul O'Connor, MD

Dr. O'Connor practices at PIH Health Whittier Hospital in Whittier, California, part of PIH Health.

Dr. O'Connor's NPI, 1740629559, was assigned on June 14, 2013. Dr. O'Connor holds California license A162305.

Dr. O'Connor'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.

Dr. O'Connor's primary practice is PIH Health Whittier Hospital in Whittier, California, part of PIH Health. Dr. O'Connor is also affiliated with PIH Health Good Samaritan Hospital. The medical group on file is PIH Health Physicians. Dmand AI also links Dr. O'Connor to 2 more hospitals and 1 medical group, each named with a free account.

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

Diagnostic radiology is Dr. O'Connor's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. O'Connor is licensed in California.

CMS data shows 924 Medicare services from Dr. O'Connor across 23 procedure codes in 2024, for 806 Medicare patients. Medicare paid $27,668 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 806 Medicare patients who saw Dr. O'Connor in 2024. The largest group is 65 to 74, with 267 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 70% are also on Medicaid. Their average risk score is 3.54, 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. O'Connor's median patient age at 67, with 52% women.

In 2024, Dr. O'Connor wrote 33 Medicare Part D claims for 18 patients. 76% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $168 in total drug cost. In 2022, CMS named 11 claims across 1 drug.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. O'Connor for performance year 2024, reported as part of a group. Dr. O'Connor accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Connor as offering telehealth. CMS counts 23 procedures of leg revascularization (restoring blood flow) by Dr. O'Connor, more than 83% of the clinicians it reports for that procedure.

Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 173 papers to Dr. O'Connor, published from 2009 to 2025. 2016 was the busiest year, with 17. The most frequent topics are Ireland, Multiple Sclerosis and Multiple Sclerosis, Relapsing-Remitting. Dr. O'Connor has published most often in Mult Scler. Dr. O'Connor's most frequent co-authors are Stuart Donald Cook, MD, Ruth A. Marrie, MD and Douglas Sproul Goodin.

CMS Open Payments shows 69 general payments to Dr. O'Connor from 18 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 62% of the total. Penumbra, Inc. paid the most, $3,049.