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Dr. Michael Shim

Gastroenterology
Oceanside, CA
21 years experience male

Locations

North County Gastroenterology

Oceanside, CA

Address

3923 Waring Road, Suite A, Oceanside, CA
Directions

My office hours

Wednesday: 8:15am - 5:00pm
Show more

Practice website

About

Bio

I am a board certified gastroenterologist with expertise in all aspects of digestive diseases.

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Gastroenterology

Licenses

United States: California

Languages spoken

English

Doctor Q&A

42 Answers
0 Agrees
The number of answers this doctor has agreed with.
A 30-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
How long: If lasting a month or more get thus checked out.
A 28-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Bile salt diarrhea: You may have diarrhea due to bile salts which can be in excess in your colon after gallbladder removal. Treatment is a prescription med called colesti... Read More
A 31-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Lots: Gerd, gastritis, ulcers, gallstones, ibs, celiac sprue, inflammatory bowel disease. You wil need to see a md to diagnose.
A 28-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
No: Upper endoscopy will disclose candida of the mouth and esophagus. Candida almost never infects the colon. Of course you can have genital yeast infecti... Read More
A 43-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Latent celiac diseas: You likely have what is called latent celiac disease, characterized by minimal to no symptoms, +blood tests, and negative biopsies all despite being o... Read More
A 28-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
No: It will not heal but can prevent worsening by avoiding certain toxins like alcohol, tobacco, and certain drugs.
A 19-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Many things: Reflux disease, gastritis, ulcers, pancreatitis, and gallstones are common treatable causes of this pain. Depending on your age, cancer can also be a ... Read More
A 25-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Yes: Could be many things. See your doctor.
A 27-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Try something else: Get investigated for whatever symptom you're having to make sure you actually have reflux. If you do or already had investigation, may simply need a d... Read More
A 18-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Yes: If symptoms persist you should see a gyn.
A 25-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Lots: Could be something wrong in your esophagus, stomach, or pancreas or liver. Get it checked out if continues.
A 19-year-old female asked:
Dr. Michael Shim
Gastroenterology 21 years experience
See a doctor: Though it might just be hemorrhoids visible bleeding can also be a sign of something serious like cancer or a polyp.
A 38-year-old female asked:
Dr. Michael Shim
Gastroenterology 21 years experience
SEE A GI DOCTOR: Those symptoms could represent a lot of things and blood is an alarm sign that should be investigated.
A 22-year-old female asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Could be an ucler: See a GI doctor. If have not had an endoscopy, should have one. If had one already, probably need to consider "extrastomach" imaging, eg ct scan to lo... Read More
A member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
CYSTITIS: She is probably prone to cystitis post intercourse. May need to consider prophylactic antibioitics or cleaning the vagina thoroughly after intercourse... Read More
A 33-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Stress: Stress can affect the GI tract directly. Unfortunately nothing we can do about thia except to avoid the stress.
A 30-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
It is ok: It is ok as long as you are not being exposed to his secretions/excrement.
A 25-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Several possible: Esophageal, cardiac, lung, or musculoskeletal. This should be investigated.
A 22-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Fiber: Get 20 grams of fiber daily, plenty of water. Take MiraLAX (polyethylene glycol) daily if necessary. If you are 50 or above without family history of ... Read More
A 36-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Yes: Yes. Just avoid whatever triggered the acute.
A 35-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Lots: You could irritable bowel syndrome if you also have an erratic bowel habit. Also could be a pelvic floor spasm or anal spasm.
A 20-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Fiber: Up the fiber and water in your diet. If needed a safe laxative is milk of magnesia (magnesium hydroxide).
A 39-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
A proton pump inh: Like Prilosec otc, Prevacid (lansoprazole) 24 hour, or zegerid otc. These are all over the counter. Should be taken daily. See a md if no response or ... Read More
A 27-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
See an md: This could be anything from a scar, gas, to a sign of cancer. Get it checked out.
A 44-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Agree: Yes and blood tests. If negative consider ultrasound for gallstones, maybe ct scan.
A 21-year-old female asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Can be: If persists longer than a week or is accompanied by new pain, nausea, vomiting, or change in bowel habit it should be investigated.
A 37-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
It: It may be related to small intestinal bacterial overgrowth.
A 57-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
No: Don't exceed the maximum recommended dosage though.
A 17-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
IT DEPENDS: I assume this gallbladder test was ordered due to symptoms consistent with gallbladder pain. If the answer is yes and the ef is only 15% the real ques... Read More
A 35-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
This might be GERD: The feelings you are having are possible signs of gerd, albeit some are not the "cardinal" typical signs (i.e. Heartburn, regurgitation). One way of t... Read More
A 31-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Hormones: It has less to do with the milk and much more to do with the hormonal changes during pregnancy.
A 28-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Pouch problems: Can your esophagus and gastric pouch checked out for anatomical problems. You need a scope of these.
A 53-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
No: Acid can cause irritation but not infection.
A 18-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
It will be ok: You may simply be either producing too much gas in your stomach or inadvertently swallowing a lot of gas. Either way this is not necessarily worrisome... Read More
A 22-year-old member asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Several things: Dont eat within 4 hours of lying down. Avoid chocolate, citrus, caffeine, fatty foods, peppermint, tight upper clothing. Meds to try: Prilosec otc dai... Read More
A 32-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Gallbladder: Could be what is called biliary colic, especially if it awakens you from sleep or radiates to your back as you suggest. Also consider a stomach proble... Read More
A 24-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
Get tested: Any skin contact with fluids from an HIV positive person is risky even id you don't have a break in your skin (though blood is riskiest). Hiv can pass... Read More
A 27-year-old female asked:
Dr. Michael Shim
Gastroenterology 21 years experience
See a GI: Start with an upper endoscopy to help determine what may be causing your symptoms.
A 28-year-old female asked:
Dr. Michael Shim
Gastroenterology 21 years experience
No: It should not cause bloating
A 26-year-old male asked:
Dr. Michael Shim
Gastroenterology 21 years experience
See a surgeon : If you truly have third degree hemorrhoids meaning prolapsed and not reducing, you should have surgery quickly.

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Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

2
Recommendations
90
Thank you notes
HealthTap member
Mar 30, 2015
Dr. Shim is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Shim is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
This made me feel good. Thanks! Glad to hear this made me feel a lot better in when I burp it seem to go away
HealthTap member
Thank you. But could you tell me why pop makes my stomach(pancreas) in a alot of pain to where I can't move?
HealthTap member
Thank you, your answer was very helpful!

Education & Training

Medical/Graduate school

New York University School of Medicine, NY
Graduated 2001MD

Residency

NYU HOSPITALS CENTER
Completed 2004

Awards

Empire Clinical Research Investigator Program
Bristol Meyers Squibb Virology Fellows Research

Affiliations

TriCity Medical Center; Oceanside, CA
Scripps Memorial Hospital; Encinitas, CA

Publications

Susceptibility to Hepatitis A in Patients With Chronic Liver Disease Due to Hepatitis C Virus Infection: Missed Opportunities for Vaccination
Extrahepatic Manifestations of Chronic Hepatitis B
Societal Guidelines and Treatment Algorithms for Hepatitis B: Similarities and Differences
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less