Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1063127082 Individual Practitioner Female Practitioner

Giulia Guerena

Physician Assistant • Whittier, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Giulia Guerena is a certified Physician Assistant practicing in Whittier, CA. With approximately 4 years of clinical experience since completing medical education in 2022, Giulia Guerena delivers high-quality medical care to the local community at 12401 WASHINGTON BLVD.

Giulia Guerena is affiliated with Torrance Health Association Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include emergency department visit with moderate level of medical decision making. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

12401 Washington Blvd

Whittier, CA 906021006

Telephone 5626980811
Associated Practice Facility / Clinic
🏢 Pih Health Whittier Hospital Facility NPI 1043215379

Medicare Profile & Education

Medical School

Other

Graduation Year

2022

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Whittier, CA

Rising Specialist (<5 Yrs)
Practitioner Clinical Experience
4 Yrs -6.1 yrs vs City Avg
City Avg: 10.1 Yrs
State Avg: 11.5 Yrs
Regional Practice Density
90 Specialists

Practicing in Whittier, CA (14617 Statewide)

Telehealth Adoption Rate
11.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
82.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Guerena (4 Years) 4 Yrs
Whittier Specialty Average (10.1 Years) 10.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making
30 30 $563.00 $100.62

Medical Specialties & State Licenses

CMS Verified: 2025-04-25
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Torrance Health Association Inc

514 N Prospect Ave, Redondo Beach, CA 902773040

Phone: 3107503300

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Tracey Kim , MD

Internal Medicine

NPI 1003556028

Doctor of Medicine (M.D.)

Dr. Andy Lee , DO

Family Medicine

NPI 1013396274

Doctor of Osteopathic Medicine (D.O.)

Dr. William Shanahan , MD

Radiology - Diagnostic Radiology

NPI 1013991116

Doctor of Medicine (M.D.)

Dr. Roger Woodard , MD

Emergency Medicine

NPI 1023054798

Doctor of Medicine (M.D.)

NPI 1023344850

Doctor of Pharmacy (Pharm.D.)

NPI 1033125653

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events
👤
Provider Name / Credentials Updated April 25, 2025

Recorded as GIULIA GUERENA

📍
Updated Practice Location August 06, 2023

Registered at 12401 WASHINGTON BLVD, WHITTIER, CA 906021006 (Tel: 5626980811)

NPI Profile Active January 16, 2023

NPI status registered as active in NPPES database

📍
Updated Practice Location January 16, 2023

Registered at 3866 CATAMARCA DR, SAN DIEGO, CA 921243404 (Tel: 8583440702)

📍
Updated Business Mailing Address January 16, 2023

Registered at 3866 CATAMARCA DR, SAN DIEGO, CA 921243404

👤
Provider Name / Credentials Updated January 16, 2023

Recorded as GIULIA CAETANO-FERRARA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 16, 2023

Physician Assistant

🟢
Initial NPI Registration & Enumeration January 16, 2023

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: 1063127082
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 16, 2023
Last Update: April 25, 2025
Sole Proprietor: Yes

Mailing Address

3866 Catamarca Dr

San Diego, CA 921243404

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.