Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ellen Hucal O'Halloran, PA-C

Individual provider Physician Assistant · NPI 1346618071

Ellen Hucal O'Halloran, PA-C is a Physician Assistant in Santa Cruz, California. Licensed in California. Registered with an NPI since 2015.

Licensed in
CA
In the registry since
2015
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

620B Sumner St
Santa Cruz, CA 95062-2535 Not confirmed with CMS for 11 years — call before visiting
Phone: (408) 464-9619
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA52551 (CA)

Record details

NPI number1346618071
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedSeptember 11, 2015
Last updated in NPPESSeptember 11, 2015

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 patients33
Services billed 44 a service is one billed item, such as a visit, a test or a procedure
Average patient age56

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.

Other providers in Santa Cruz