Dr. Ashling O'Connor, MD

Dr. O'Connor practices at Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health.

Dr. O'Connor's NPI, 1881851798, was assigned on May 19, 2008. Dr. O'Connor holds Massachusetts license 247048.

Dr. O'Connor's primary practice is Lahey Clinic, at 41 & 45 Mall Road, Burlington, MA 01803 in Middlesex County. The practice phone is (781) 744-5100.

Dr. O'Connor's primary practice is Lahey Clinic in Burlington, Massachusetts, part of Beth Israel Lahey Health. Dr. O'Connor is also affiliated with Beverly Hospital. The medical group on file is Lahey Clinic. Dmand AI also links Dr. O'Connor to 1 more group practice or clinic and 1 home health agency, 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.

Surgery is Dr. O'Connor's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. O'Connor is licensed in Massachusetts.

CMS data shows 588 Medicare services from Dr. O'Connor across 8 procedure codes in 2024, for 404 Medicare patients. Medicare paid $73,758 for them.

CMS counts 404 Medicare patients who saw Dr. O'Connor in 2026. The largest group is 65 to 74, with 191 patients. 72% of them have high cholesterol, and 68% have cancer. 12% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. O'Connor's median patient age at 69, with 99% women.

In 2026, Dr. O'Connor wrote 33 Medicare Part D claims for 28 patients. 94% of them were for generic drugs. They cover 3 drugs, with $341 in total drug cost. In 2022, CMS named 17 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 2026, reported through an alternative payment model (APM). 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 62 procedures of mastectomy by Dr. O'Connor, more than 96% of the clinicians it reports for that procedure.

Dmand AI links 2 papers to Dr. O'Connor. The most frequent topics are Breast Neoplasms. Dr. O'Connor's most frequent co-authors are Jennifer Anne Baima, MD, Kathryn Edmiston, MD and Anne C. Larkin, MD.

CMS Open Payments shows 5 general payments to Dr. O'Connor from 4 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 54% of the total. Hologic Inc paid the most, $900.