Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1114451598 Individual Practitioner Male Practitioner

Dr. Andrew Chong , MD

General Practice • Downey, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Andrew Chong, MD is a certified General Practice practicing in Downey, CA. With approximately 9 years of clinical experience since completing medical education in 2017, Dr. Chong delivers high-quality medical care to the local community at 9333 IMPERIAL HWY.

Dr. Chong is affiliated with Southern California Permanente Medical Group and accepts Medicare assignment.

Frequently performed procedures and clinical services include x-ray of chest, 1 view, ct scan head or brain without contrast, ct scan of abdomen and pelvis with contrast. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

9333 Imperial Hwy

Downey, CA 902422812

Telephone 8335742273
Associated Practice Facility / Clinic
🏢 Kaiser Foundation Hospitals Facility NPI 1518012301

Medicare Profile & Education

Medical School

Other

Graduation Year

2017

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Downey, CA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
9 Yrs -2.0 yrs vs City Avg
City Avg: 11.0 Yrs
State Avg: 31.1 Yrs
Regional Practice Density
7 Specialists

Practicing in Downey, CA (2300 Statewide)

Telehealth Adoption Rate
14.3% 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. Chong (9 Years) 9 Yrs
Downey Specialty Average (11.0 Years) 11.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
71045 X-ray of chest, 1 view
44 41 $34.00 $8.72
70450 Ct scan head or brain without contrast
13 13 $254.00 $40.17
74177 Ct scan of abdomen and pelvis with contrast
11 11 $482.00 $89.18

Medical Specialties & State Licenses

CMS Verified: 2025-12-15
General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License CA A157757

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Hospital & Practice Group Affiliations

Southern California Permanente Medical Group

9449 Imperial Hwy, Downey, CA 902422814

Phone: 5624613000

Southern California Permanente Medical Group

9333 Imperial Hwy, Downey, CA 902422812

Phone: 8009234040

Southern California Permanente Medical Group

9353 Imperial Hwy, Downey, CA 902422812

Phone: 5626579000

Southern California Permanente Medical Group

9333 Rosecrans Ave, Bellflower, CA 907062141

Phone: 5624613000

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Lauren Mulligan , MD

Psychiatry & Neurology - Psychiatry

NPI 1003277914

Doctor of Medicine (M.D.)

Dr. Haein Kim , MD

Family Medicine

NPI 1003392309

Doctor of Medicine (M.D.)

Dr. David Hwang , DO

Internal Medicine - Nephrology

NPI 1003475039

Doctor of Osteopathic Medicine (D.O.)

Dr. Daniel Chu , MD

Family Medicine

NPI 1003481375

Doctor of Medicine (M.D.)

Dr. Bansari Patel , DO

Student in an Organized Health Care Education/Training Program

NPI 1003565912

Doctor of Osteopathic Medicine (D.O.)

Dr. Alexander Wong , DO

Student in an Organized Health Care Education/Training Program

NPI 1003666116

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

11 Historical Events
📍
Updated Practice Location December 15, 2025

Registered at 9333 IMPERIAL HWY, DOWNEY, CA 902422812 (Tel: 8335742273)

📍
Updated Business Mailing Address December 15, 2025

Registered at 9333 IMPERIAL HWY, DOWNEY, CA 902422812

📍
Updated Practice Location May 15, 2020

Registered at 2051 MARENGO ST, LOS ANGELES, CA 900331352 (Tel: 3234097242)

📍
Updated Business Mailing Address May 15, 2020

Registered at 704 N RAMPART BLVD, LOS ANGELES, CA 900263845 (Tel: 5622796210)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 15, 2020

General Practice (License #A157757 in CA)

NPI Profile Active April 12, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location April 12, 2017

Registered at 1836 SOUTH AVE, LA CROSSE, WI 546015429 (Tel: 6087827300)

📍
Updated Business Mailing Address April 12, 2017

Registered at 1836 SOUTH AVE, LA CROSSE, WI 546015429 (Tel: 6087827300)

👤
Provider Name / Credentials Updated April 12, 2017

Recorded as ANDREW CHONG, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 12, 2017

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration April 12, 2017

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: 1114451598
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 12, 2017
Last Update: December 15, 2025
Sole Proprietor: No

Mailing Address

9333 Imperial Hwy

Downey, CA 902422812

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.