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KF

Dr. Karl Feng, MD

Fullerton, CA

23 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Feng, Emergency Medicine Specialist in Fullerton, CA?

    Dr. Karl Feng, MD is an Emergency Medicine Specialist, who primarily practices in Fullerton, CA. He has been practicing for over 23 years and is board certified. Dr. Feng completed his residency at Orlando Reg Healthcare Sys, Emergency Medicine. Dr. Feng is fluent in English, and is currently seeing new patients. Dr. Feng’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Feng’s office at (714) 992-3965.

    Where did Dr. Feng go to medical school and complete their residency?

    • Residency: Orlando Reg Healthcare Sys, Emergency Medicine

    • Medical School: University of Ca, Los Angeles, Ucla Sch of Med, Los Angeles Ca

    Is Dr. Feng board certified as an Emergency Medicine Specialist?

    Yes, Dr. Karl Feng, MD is board certified by the American Board of Emergency Medicine

    What languages does Dr. Feng speak?

    Dr. Feng and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does an Emergency Medicine Specialist like Dr. Feng typically treat?

    As an Emergency Medicine Specialist, Dr. Feng diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Feng. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Pectoral pain

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

    • Muscle Weakness
    • Muscle Disorder
    • Loss of strength
    • Fatigue
    • Muscle fatigue

    ICD-10 Codes:

    • R531: Weakness

    Also known as:

    • Urinary Tract Infection
    • UTI
    • Bladder infection
    • Kidney infection
    • Urine infection

    ICD-10 Codes:

    • N390: Urinary tract infection, site not specified

    Also known as:

    • Dizziness
    • Dizziness and Vertigo
    • Lightheadedness
    • Giddiness
    • Vertigo

    ICD-10 Codes:

    • R42: Dizziness and giddiness

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Upper body pain

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • Head Injury
    • Head Injuries
    • Head Trauma
    • Cranial Injury
    • Brain Injury

    ICD-10 Codes:

    • S0990XA: Unspecified injury of head, initial encounter

    Also known as:

    • Fast Heartbeat
    • Arrhythmia
    • Tachycardia
    • Rapid heart rate
    • Racing heart

    ICD-10 Codes:

    • R000: Tachycardia, unspecified

    What procedures does an Emergency Medicine Specialist like Dr. Feng typically perform?

    As an Emergency Medicine Specialist, procedures performed by Dr. Karl Feng may include:

    Please contact Dr. Feng's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Feng accept my insurance?

    Dr. Feng accepts most major insurance plans. Important: Please call our office at (714) 992-3965 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Feng accept in Fullerton, CA?

    Dr. Feng in Fullerton, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Centene Corporation

    • Elevance Health Inc. (formerly Anthem)

    • Kaiser Permanente

    • L.A. Care Health Plan

    • Medicare

    • St. Joseph Health System (CA)

    • State of California

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Feng's office located?

    Em Dept

    101 E Valencia Mesa Dr

    Fullerton, CA 92835

    (714) 992-3965

    Get Directions

    What is Dr. Feng's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Feng's National Provider Identifier (NPI) number is 1306875190.

    What common questions do patients ask about Dr. Feng?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Feng

    What is Dr. Karl Feng's specialty?

    Dr. Feng is a Emergency Medicine Specialist near Fullerton, CA.

    What does an Emergency Medicine Specialist do?

    An emergency physician is dedicated to making prompt decision and taking necessary actions essential for preventing death or additional disabilities. This role encompasses guiding emergency medical technicians in pre-hospital environments as well as providing care within the emergency department. The emergency physician is responsible for the immediate identification, evaluation, treatment, stabilization, and arrangement of a diverse array of adult and pediatric patients facing acute illnesses and injuries.

    Is this Dr. Karl Feng affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Feng is affiliated with Providence St. Jude Medical Center, Providence St. Jude Medical Center, Uci Medical Center, Kaiser Permanente Orange County - Anaheim Medical Center, Pih Health Whittier Hospital, Ahmc Anaheim Regional Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see an Emergency Medicine Specialist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Emergency Medicine Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Karl Feng accepting new patients in Fullerton, CA?

    Yes, Dr. Karl Feng is accepting new patients at this time.

    Does Dr. Karl Feng offer online booking?

    Please contact Dr. Feng's office at (714) 992-3965 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Karl Feng?

    Please contact Dr. Feng's office at (714) 992-3965 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Karl Feng have?

    Dr. Karl Feng is certified by the American Board of Emergency Medicine.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>