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21 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Yoon, Internist in Fullerton, CA?
Dr. Stephen Yoon, MD is an Internist, who primarily practices in Fullerton, CA with 2 additional practice locations. He has been practicing for over 21 years and is board certified by the American Board of Internal Medicine and American Board of Pediatrics. Dr. Yoon completed his residency at Univ Of S Ca/Lac & Usc, Internal Medicine/Pediatrics. Dr. Yoon is fluent in English, Korean, and Spanish, and is currently seeing new patients. Dr. Yoon’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Yoon’s office at (714) 447-5027.
Where did Dr. Yoon go to medical school and complete their residency?
Residency: Univ Of S Ca/Lac & Usc, Internal Medicine/Pediatrics
Medical School: Umdnj-New Jersey Med Sch- Newark Nj
Is Dr. Yoon board certified in Internist?
Yes, Dr. Stephen Yoon, MD is board certified by the American Board of Internal Medicine , American Board of Pediatrics
What languages does Dr. Yoon speak?
Dr. Yoon and their clinical team can communicate with patients in the following languages:
English
Korean
Spanish
What conditions does Dr. Yoon treat?
As a Internist, Dr. Yoon 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. Yoon. 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.
Also known as:
- Sepsis
- E. Coli Sepsis
- E. Coli Infection
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
- E. coli Blood Infection
- E. coli Septicemia
- Bacterial Blood Poisoning
ICD-10 Codes:
- A419: Sepsis, unspecified organism
- A4151: Sepsis due to Escherichia coli [E. coli]
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- Acute Kidney Failure
- Kidney Failure
- Acute Renal Failure
- Sudden Kidney Failure
ICD-10 Codes:
- N179: Acute kidney failure, unspecified
Also known as:
- Acute Respiratory Failure with Low Oxygen
- Respiratory Failure
- Sudden lung failure with low oxygen
- Hypoxic respiratory failure
- Acute breathing failure with hypoxia
ICD-10 Codes:
- J9601: Acute respiratory failure with hypoxia
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
Also known as:
- Ischemic Stroke
- Brain Attack
- Cerebral Infarction
- Brain Ischemia
ICD-10 Codes:
- I639: Cerebral infarction, unspecified
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- GI Bleeding
- Internal Digestive Bleeding
- Digestive Tract Hemorrhage
ICD-10 Codes:
- K922: Gastrointestinal hemorrhage, unspecified
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
Also known as:
- Heart Failure
- Congestive Heart Failure
- CHF
- Cardiac Insufficiency
ICD-10 Codes:
- I509: Heart failure, unspecified
Also known as:
- Heart Attack (NSTEMI)
- Heart Attack
- Myocardial Infarction
- Non-STEMI
- Less Severe Heart Attack
ICD-10 Codes:
- I214: Non-ST elevation (NSTEMI) myocardial infarction
Also known as:
- Intestinal Obstruction
- Bowel Obstruction
- Blocked Intestines
- Gut Blockage
ICD-10 Codes:
- K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
Also known as:
- COVID-19
- COVID-19 (Coronavirus Disease 2019)
- Coronavirus Disease 2019
- SARS-CoV-2 Infection
- Novel Coronavirus
ICD-10 Codes:
- U071: COVID-19
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I4891: Unspecified atrial fibrillation
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Also known as:
- Changes in Mental State
- Mental Disorder
- Confusion
- Disorientation
- Changes in awareness
ICD-10 Codes:
- R4182: Altered mental status, unspecified
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Pectoral pain
ICD-10 Codes:
- R0789: Other chest pain
Also known as:
- Cellulitis of Left Lower Limb
- Cellulitis
- Left Leg Skin Infection
- Bacterial Left Leg Infection
- Spreading Left Leg Infection
ICD-10 Codes:
- L03116: Cellulitis of left lower limb
Also known as:
- Metabolic Brain Disorder
- Brain Disease
- Metabolic Encephalopathy
- Brain Dysfunction from Metabolism
ICD-10 Codes:
- G9341: Metabolic encephalopathy
Which procedures does Dr. Yoon perform as a Internist?
As a Internist, procedures performed by an Dr. Stephen Yoon may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
For detailed information, please contact Dr. Yoon's office.
Does Dr. Yoon accept my insurance?
Dr. Yoon accepts most major insurance plans. Important: Please call our office at (714) 447-5027 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Yoon accept in Fullerton, CA?
Dr. Yoon 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
Altamed Health Services
CalOptima
Centene
CVS Health (formerly Aetna)
Medicare
Monarch HealthCare
OptumRx
Scan Health Plan
UnitedHealthcare
View All Insurances
Where is Dr. Yoon's office located?
Dr. Stephen Yoon's Primary Practice
101 E Valencia Mesa Dr
Fullerton, CA 92835
(714) 447-5027
What is Dr. Yoon's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Yoon's National Provider Identifier (NPI) number is 1851327100.
What common questions do patients ask about Dr. Yoon?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Yoon
What is Dr. Stephen Yoon's specialty?
Dr. Yoon is a Internist near Fullerton, CA.
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.
Contact Dr. Yoon to book an appointment today.Is this Dr. Stephen Yoon affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Yoon is affiliated with Providence St. Jude Medical Center, Providence St. Jude Medical Center, Providence St. Jude 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
Where can I learn more about Internist?
Explore Internist with 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 Stephen Yoon accepting new patients in Fullerton, CA?
Yes, Dr. Stephen Yoon is accepting new patients at this time.
Does Dr. Stephen Yoon offer online booking?
Please contact Dr. Yoon's office at (714) 447-5027 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Stephen Yoon?
Please contact Dr. Yoon's office at (714) 447-5027 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Stephen Yoon have?
Dr. Stephen Yoon is certified by the American Board of Internal Medicine and American Board of Pediatrics.
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