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Active NPI 1083844179 Individual Practitioner Male Practitioner

Dr. Stephen Sam-Fong Chen , MD

Internal Medicine • Downey, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Stephen Chen, MD is a certified Internal Medicine practicing in Downey, CA. With approximately 18 years of clinical experience since completing medical education in 2008, Dr. Chen delivers high-quality medical care to the local community at 9333 IMPERIAL HIGHWAY.

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

Frequently performed procedures and clinical services include initial hospital care with straightforward or low-level medical decision making, if using time, at least, hospital observation care. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

9333 Imperial Highway

Downey, CA 902422812

Telephone 5626579000

Medicare Profile & Education

Medical School

Other

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Downey, CA

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
18 Yrs -0.6 yrs vs City Avg
City Avg: 18.6 Yrs
State Avg: 26.6 Yrs
Regional Practice Density
118 Specialists

Practicing in Downey, CA (18502 Statewide)

Telehealth Adoption Rate
10.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
61.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chen (18 Years) 18 Yrs
Downey Specialty Average (18.6 Years) 18.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2023)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
13 12 $338.00 $130.15

Medical Specialties & State Licenses

CMS Verified: 2021-11-06
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA A108952

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Medical License
A108952 (CA)

Hospital & Practice Group Affiliations

Southern California Permanente Medical Group

9333 Rosecrans Ave, Bellflower, CA 907062141

Phone: 5624613000

Southern California Permanente Medical Group

9353 Imperial Hwy, Downey, CA 902422812

Phone: 5626579000

Southern California Permanente Medical Group

9333 Imperial Hwy, Downey, CA 902422812

Phone: 8009234040

Southern California Permanente Medical Group

9449 Imperial Hwy, Downey, CA 902422814

Phone: 5624613000

Practice Associates & Co-Workers

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

40 Associated Practitioners
Brandon Lui

Internal Medicine

NPI 1003443235
NPI 1063445708

Doctor of Medicine (M.D.)

Andre Richardson

Respiratory Therapist, Registered

NPI 1073367405
NPI 1073887972

Doctor of Medicine (M.D.)

Mack Carter

Respiratory Therapist, Registered - Neonatal/Pediatrics

NPI 1144087867
Camthy Ngo

Respiratory Therapist, Registered

NPI 1144702093

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active August 08, 2015

NPI status registered as active in NPPES database

📍
Updated Practice Location August 08, 2015

Registered at 9333 IMPERIAL HIGHWAY, DOWNEY, CA 902422812 (Tel: 5626579000)

📍
Updated Business Mailing Address August 08, 2015

Registered at 9333 IMPERIAL HIGHWAY, DOWNEY, CA 902422812 (Tel: 8008234040)

👤
Provider Name / Credentials Updated August 08, 2015

Recorded as STEPHEN CHEN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 08, 2015

Internal Medicine (License #A108952 in CA)

🟢
Initial NPI Registration & Enumeration July 23, 2009

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: 1083844179
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 23, 2009
Last Update: March 07, 2023
Sole Proprietor: Yes

Mailing Address

9333 Imperial Highway

Downey, CA 902422812

Phone: 8008234040

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.