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

Dr. Patrick Halliday, MD

Individual provider Anesthesiology Physician · NPI 1659908242

Dr. Patrick Halliday, MD is an Anesthesiology in Santa Clara, California. Graduated from University of California, San Francisco School of Medicine in 2020, 6 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
6
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

700 Lawrence Expy
Santa Clara, CA 95051-5173
Phone: (408) 851-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A197179 (CA)

Record details

NPI number1659908242
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2020
Last updated in NPPESOctober 12, 2025
Certification dateOctober 12, 2025
Mailing address700 Lawrence Expy, Santa Clara, CA 95051-5173

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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