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Dr. Patrick Koo, MD

Gastroenterology*
2.7 (3)
Map Pin Small Fullerton, CA
Accepting new patients
12 years of experience

Offers telehealth

Overview of Dr. Patrick Koo, MD

Dr. Patrick Koo, MD is a Gastroenterology Specialist in Fullerton, CA. They specialize in Gastroenterology, has 12 years of experience, and is board certified in Gastroenterology. They graduated from Penn State University College of Medicine and is affiliated with Providence St. Jude Medical Center. Patients rated Dr. Koo an average 2.7 star rating.

Dr. Koo works at St. Jude Heritage Fullerton - Gastroenterology in Fullerton, CA. They frequently treat conditions like Gastrointestinal Bleeding and Duodenitis along with other conditions at varying frequencies. They are accepting new patients and accept Aetna, Anthem Blue Cross and Blue Cross Blue Shield as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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These providers are on the medical staff of Riverside Community Hospital.

Dr. Koo's Office Locations

  1. 1
    St. Jude Heritage Fullerton - Gastroenterology
    1837 Sunny Crest Dr, Fullerton, CA 92835 Icon Directions Right Arrow Directions Phone Icon (714) 446-5831

Hospital Affiliations
Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

  • Providence St. Jude Medical Center

Experience & Treatment Frequency

NEW FEATURE

What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.
Gastrointestinal Bleeding
Duodenitis
Constipation
Gastrointestinal Bleeding
Duodenitis
Constipation

Treatment frequency



Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
Gastrointestinal Bleeding
Duodenitis
Constipation
Abdominal Pain
Anemia
  • View other providers who treat Anemia
Ascites
  • View other providers who treat Ascites
Barrett's Esophagus
Chronic Gastritis
Cirrhosis
Colorectal Polyp
Crohn's Disease
Dehydration
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Diffuse Esophageal Spasm
Duodenal Cancer
Duodenal Ulcer
Dysphagia
Esophageal Motility Disorders
Esophageal Ulcer
Esophageal Varices
Esophagitis
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroptosis
Hemorrhoids
Hepatitis B
Inflammatory Bowel Disease
Intestinal Diverticulosis
Intestinal Obstruction
Intestinal Ulcer
Nausea
  • View other providers who treat Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Proctoptosis
Rectal Prolapse
Reflux Esophagitis
Retroperitoneum Cancer
Ulcerative Colitis
Unexplained Weight Loss
Upper Digestive Tract Cancer
Vitamin_Deficiency
Vomiting Disorders
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Duodenal Polypectomy
Endoscopy (Esophagus, Stomach, Small Intestine)
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Flexible Sigmoidoscopy
Manometry
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Rigid Proctosigmoidoscopy
Abnormal Thyroid
Acidosis
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Acne
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Actinic Keratosis
Acute Bronchitis
Acute Deep Vein Thrombosis (DVT)
Acute Pharyngitis
Acute Sinusitis
Acute Upper Respiratory Infection
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Adhesive Capsulitis Shoulder
Alcoholic Cirrhosis
Alkalosis
All Headaches (incl. Migraine)
Allergic Conjunctivitis
Allergic Rhinitis
Anal or Rectal Pain
Animal Allergies
Anxiety
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Arthritis
Arthritis of the Elbow
Asthma
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Asymptomatic Post-Menopausal Status
Atherosclerosis
Atrophic Vaginitis
Back Pain
Balanitis
Balanoposthitis
Bedsores
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Benign Chronic Pain Syndrome
Bile Duct Obstruction
Biliary Cirrhosis
Bladder Infection
Blood in Urine (Hematuria)
Bowel Strangulation
Bronchiectasis
Bronchitis
Bronchospasm
Bunion
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Bursitis
  • View other providers who treat Bursitis
Calcium Metabolism Disorders
Candidiasis of Skin and Nails
Canker Sore
Carpal Tunnel Syndrome
Celiac Disease
Cellulitis
Chest Pain
Chest Wall Pain Syndrome
Cholangitis
Chronic Deep Vein Thrombosis (DVT)
Chronic Fatigue Syndrome
Chronic Interstitial Cystitis
Chronic Neck Pain
Chronic Pain
Chronic Prostatitis
Chronic Sinusitis
Cluster Headache
Coccygeal Pain
Common Cold
Congenital Anomaly Intestine
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Deep Vein Thrombosis (DVT)
Dermatitis Due to Drugs
Dermatitis Due to Substances Taken Internally
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Difficulty With Walking
Dizziness
Down Syndrome
Dysentery
Dyslipidemia
Earwax Buildup
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Enteritis
Fever
  • View other providers who treat Fever
Fibromyalgia
Fungal Nail Infection
Gait Abnormality
Gastrointestinal Malabsorption
Gastroparesis
Genital Warts
Gout
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Hair Loss
Hammer Toe
Headache
  • View other providers who treat Headache
Heart Disease
Heart Palpitations
Heartburn
Hepatitis C
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Herpes Zoster Without Complication
Histoplasmosis
Hives
  • View other providers who treat Hives
Human Immunodeficiency Virus (HIV)
Hydrocele
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Ileus
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Indigestion
Infectious Diarrheal Disease
Influenza (Flu)
Insomnia
  • View other providers who treat Insomnia
Intertrigo
Intestinal Diverticulitis
Intestinal Prolapse
Irritable Bowel Syndrome
Itchy Skin
Joint Pain
Kidney Stone Pain (Renal Colic)
Leg and Foot Ulcers
Limb Pain
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Low Back Pain
Low Blood Oxygen Level
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Menopausal and Postmenopausal Disorders
Menstrual Disorders
Migraine
  • View other providers who treat Migraine
Mineral Metabolism Disorders
Moles (Benign Skin Lesions)
Muscle Cramping
Muscle Spasm
Nasopharyngitis
Neurogenic Bladder
Nighttime Urination (Nocturia)
Nosebleed
Obesity
  • View other providers who treat Obesity
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hand
Osteoarthritis of Hand or Wrist
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Outer Ear Infection
Overactive Bladder
Overweight
Painful Urination (Dysuria)
Pancreatitis
Patellofemoral Pain Syndrome (PFPS)
Peptic Ulcer
Pericardial Disease
Perimenopause
Pernicious Anemia
Pharyngitis
Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Pneumonia
Polymyalgia Rheumatica (PMR)
Polymyositis
Polyneuropathy
Polyuria
  • View other providers who treat Polyuria
Postherpetic Neuralgia
Postnasal Drip
Primary Biliary Cholangitis
Prostatitis
Proteinuria
Pyloric Stenosis
Radiculopathy
Rash
  • View other providers who treat Rash
Raynaud's Disease
Restless Leg Syndrome
Ringworm
  • View other providers who treat Ringworm
Rosacea
  • View other providers who treat Rosacea
Sarcoidosis
Sciatica (Not Due to Disc Displacement)
Secondary Hypertension
Secondary Renovascular Hypertension
Sexually Transmitted Diseases (STDs)
Shingles
  • View other providers who treat Shingles
Shortness of Breath
Shoulder Tendinitis and Tenosynovitis
Sickle Cell Disease
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Symptomatic Menopause
Syphilis Infections
Tension Headache
Throat Pain
Thyroid Goiter
Tobacco Use Disorder
Urinary Hesitancy
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Vaginitis or Vaginosis
Venous Compression
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
  • View other providers who treat Vertigo
Viral Enteritis
Viral Hepatitis
Viral Infection
Vitamin B Deficiency
Vitamin B12 Anemia
Vitamin B12 Deficiency
Vitamin D Deficiency
Warts
  • View other providers who treat Warts
Wheezing
  • View other providers who treat Wheezing
Yeast Infections
Abscess or Cyst Drainage or Aspiration
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Hemorrhoidectomy or Excision of Anal Tags
Immunization Administration
Laparoscopic Removal of Stones from Biliary Tract
Puncture Aspiration
Check your insurance
    Close Icon
    Please double-check when making an appointment.

    View All Accepted Carriers

    • ADVANTAGE Health Solutions, Inc.
    • Aetna
    • Anthem Blue Cross
    • Blue Cross Blue Shield
    • Blue Cross Blue Shield of California
    • Blue Shield of California
    • Capital Blue Cross
    • Cigna
    • Clover Health
    • First Health
    • Health Net
    • Humana
    • Oscar Health
    • UnitedHealthCare

    * Please verify this information when scheduling an appointment.

    Ratings & Reviews
    Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.

    Learn more about how FindCare's ratings and reviews work

    2.7
    Average provider rating
    Based on 3 ratings
    Patient Ratings (3)
    5 Star
    (1)
    4 Star
    (0)
    3 Star
    (0)
    2 Star
    (1)
    1 Star
    (1)
    Leave a review

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    Photo: Dr. Patrick Koo, MD
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    Dr. Koo's Office & Staff

    • Ease of scheduling urgent appointments
    • Office environment, cleanliness, comfort, etc.
    • Staff friendliness and courteousness
    • Total wait time (waiting & exam rooms)

    Experience with Dr. Koo

    • Level of trust in provider's decisions
    • How well provider explains medical condition(s)
    • How well provider listens and answers questions
    • Hpends appropriate amount of time with patients

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    About Dr. Patrick Koo, MD

    Specialties*
    • Gastroenterology

    • *Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
    Specialties*
    Years of Experience
    • 12 years of experience
    Years of Experience
    Years of experience represents how long a provider has been practicing in their field since graduating from medical school. Not all providers will have this information available.
    Languages Spoken
    • English, Chinese
    Languages Spoken
    NPI Number
    • 1801152772
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Medical Education
    • Penn State University College of Medicine
    Medical Education
    Board Certifications
    • Gastroenterology and Internal Medicine
    Board Certifications
    What’s a board certification and why is it important that my provider has one?

    A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

    Frequently Asked Questions

    Dr. Patrick Koo, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Koo is offering online scheduling or call the provider’s office for more information.

    Dr. Koo has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

    Dr. Koo works at St. Jude Heritage Fullerton - Gastroenterology in Fullerton, CA. View the full address on Dr. Koo’s profile.

    Dr. Koo has seen patients for Gastrointestinal Bleeding and Duodenitis, and more. You can see other conditions treated by Dr. Koo on their profile. Please call the provider’s office to confirm all visit reasons.

    3 patients have reviewed Dr. Koo. The overall rating for this provider is 2.7. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Koo.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. Koo, there are benefits to both methods. A person calling to schedule an with Dr. Koo appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

    Telehealth Options
    This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Koo, or would you like to choose another provider and have an online appointment right now?
    Find provider online now
    Call now to make an appointment
    (714) 446-5831

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