Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Kayla Christine O'Brien, PHYSICIANASSISTANT

Individual provider Surgical Physician Assistant · NPI 1356997787

Kayla Christine O'Brien, PHYSICIANASSISTANT is a Physician Assistant in Boston, Massachusetts. Qualified in 2019, 7 years ago. Practices with Cedars-Sinai Medical Care Foundation, a 1,696-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and New York.

Years since qualifying
7
Licensed in
MA, NY
In the registry since
2019
Specialties on file
2
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Practice location Address checks out

75 Francis St
Boston, MA 02115-6110
Phone: (617) 732-5500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 100 Woods Rd, Valhalla, NY 10595-1530 — (914) 493-5688

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 101085 (MA)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 023819 (NY)

Record details

NPI number1356997787
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHYSICIANASSISTANT
Sole proprietorNo
NPI enumeratedAugust 12, 2019
Last updated in NPPESJuly 14, 2025
Certification dateJuly 14, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Cedars-Sinai Medical Care Foundation — 1696 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients38
Services billed 88 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cedars-Sinai Medical Care Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1696 clinicians in the practice; 12 are shown here.

Other providers in Boston