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Active NPI 1659908242 Individual Practitioner Male Practitioner

Dr. Patrick Halliday , MD

Anesthesiology • Santa Clara, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Patrick Halliday, MD is a certified Anesthesiology practicing in Santa Clara, CA. With approximately 6 years of clinical experience since graduating from University Of California, San Francisco School Of Medicine in 2020, Dr. Halliday delivers high-quality medical care to the local community at 700 LAWRENCE EXPY.

Dr. Halliday is affiliated with Permanente Medical Group Inc and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

700 Lawrence Expy

Santa Clara, CA 950515173

Telephone 4088511000
Associated Practice Facility / Clinic
🏢 Kaiser Foundation Hospitals Facility NPI 1326119967

Medicare Profile & Education

Medical School

University Of California, San Francisco School Of Medicine

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Santa Clara, CA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -17.2 yrs vs City Avg
City Avg: 23.2 Yrs
State Avg: 27.4 Yrs
Regional Practice Density
36 Specialists

Practicing in Santa Clara, CA (7879 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Halliday (6 Years) 6 Yrs
Santa Clara Specialty Average (23.2 Years) 23.2 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-10-12
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CA A197179

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Hospital & Practice Group Affiliations

Permanente Medical Group Inc

700 Lawrence Expy, Santa Clara, CA 950515173

Phone: 4088511000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Valerie Roberson , RDN

Dietitian, Registered

NPI 1003271925

Registered Dietitian Nutritionist

NPI 1003770652
Swarna Koneru , RD

Dietitian, Registered

NPI 1003937285

Registered Dietitian

Dr. Krisna Chai , MD

Internal Medicine - Gastroenterology

NPI 1013007202

Doctor of Medicine (M.D.)

Dr. Andrea Hutchinson , MD

Obstetrics & Gynecology

NPI 1013094945

Doctor of Medicine (M.D.)

Dr. Alan Man , MD

Internal Medicine

NPI 1013094952

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location October 12, 2025

Registered at 700 LAWRENCE EXPY, SANTA CLARA, CA 950515173 (Tel: 4088511000)

📍
Updated Business Mailing Address October 12, 2025

Registered at 700 LAWRENCE EXPY, SANTA CLARA, CA 950515173 (Tel: 4088511000)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 12, 2025

Anesthesiology (License #A197179 in CA)

NPI Profile Active March 24, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location March 24, 2020

Registered at 1959 NE PACIFIC ST, SEATTLE, WA 981950001 (Tel: 2065432474)

📍
Updated Business Mailing Address March 24, 2020

Registered at 1959 PACIFIC ST BOX 356540, SEATTLE, WA 981950001 (Tel: 2065432474)

👤
Provider Name / Credentials Updated March 24, 2020

Recorded as PATRICK HALLIDAY, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 24, 2020

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 24, 2020

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1659908242
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 24, 2020
Last Update: October 12, 2025
Sole Proprietor: No

Mailing Address

700 Lawrence Expy

Santa Clara, CA 950515173

Phone: 4088511000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.