Dr. Howard Greller
Emergency Medicine
New York, NY
24 years experience male
Locations
Mount Sinai Upper West Side Urgent Care
New York, NY
Mount Sinai Department of Emergency Medicine
New York, NY
About
Bio
Emergency physician with a sub specialty in Medical Toxicology. New York born and bred. Co-host, The Emergency Medicine Show, SiriusXM 81 Doctor Radio
SpecialtiesDoctors 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.
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.
Emergency Medicine
Toxicology
Licenses
United States: New York
Languages spoken
English
Doctor Q&A
49 Answers
25 Agrees
The number of answers this doctor has agreed with.
A 43-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Serious: Alcohol is a central nervous system depressant. Drinking too much can lead to a coma and loss of protective reflexes that prevent you from aspirating ... Read More
5.1k viewsReviewed >2 years ago
A 19-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Happy birthday!: As long as you can eat and drink, aren't experiencing any difficulty breathing, you should be okay to shred. Have fun and make sure to wear a helmet. ... Read More
5.1k viewsAnswered >2 years ago
A 21-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Psychiatrist: You could very easily start with your primary medical doctor. They can check for common medical problems (like thyroid disease) that can affect mood. ... Read More
5.1k viewsReviewed >2 years ago
A 39-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Not for the ER: The er can do some things, and some things rapidly. However to understand why you are getting recurrent kidney infections, there are tests that can't ... Read More
5.1k viewsAnswered >2 years ago
A 37-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Why was it tested?: That's the most important question to ask. The context in which the lab was drawn will inform how it is interpreted. Lots of things can raise your lip... Read More
5.1k viewsReviewed >2 years ago
A 28-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: The two medications do not interact and do not share routes of elimination from the body. Just make sure that you are taking the correct dose and freq... Read More
5.1k viewsAnswered >2 years ago
A 21-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Probably not: Sorry that you got sick. A lot of food gets crushed up and passed from the stomach to the intestines in an hour. You may have thrown up some of the ch... Read More
5.1k viewsAnswered >2 years ago
A 50-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Fever or warmth? ER: If the injury was a week ago, and now the toe is red and swollen, there should be some concern for either a skin infection or an underlying fracture. ... Read More
5.1k viewsReviewed >2 years ago
A 39-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Based on weight: The dose of the medication depends on the weight of the child as well as the condition that they are being treated for. The best thing to do would be ... Read More
5.1k viewsReviewed >2 years ago
A 22-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
See an ENT: You should see an ENT and have your sinuses directly visualized with a camera. They may find that you have a narrowing of the ostia (the opening of th... Read More
5.1k viewsAnswered >2 years ago
A 34-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Depends on mom: Baby is dependent on mom for everything. Anything that puts mom at risk puts the baby at risk. The most severe risk with food poisoning (non-bacterial... Read More
5.1k viewsReviewed >2 years ago
A 20-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Oral hygeine: A combination of good oral hygiene (i.e. Flossing, brushing both teeth and tongue and using some form of oral rinse) along with dietary modification (... Read More
6.3k viewsReviewed >2 years ago
A 31-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Research and friends: There are a few good ways of figuring this out. First, ask around to friends and acquaintances you know to see who they recommend. Second, you can cal... Read More
5.1k viewsReviewed >2 years ago
A 35-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Serious: Alcohol is a central nervous system depressant. Drinking too much can lead to a coma and loss of protective reflexes that prevent you from aspirating ... Read More
5.1k viewsAnswered >2 years ago
A 33-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Not if its needed: The most important question is why there is blood loss? After that, is the patient someone who is or can tolerate having a low blood count? There are ... Read More
5.1k viewsAnswered >2 years ago
A 45-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Above and below: Most food poisoning is characterized by nausea, vomiting and diarrhea. While most of the time the illness is self-limited and does no lasting harm, if... Read More
5.1k viewsAnswered >2 years ago
A 33-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Hygiene and handling: Any improperly handled or prepared food can put you at risk of food poisoning. Food poisoning can be from bacterial contamination, a viral illness or ... Read More
5.1k viewsReviewed >2 years ago
A 29-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: Any improperly handled or prepared food can put you at risk of food poisoning. Food poisoning can be from bacterial contamination, a viral illness or ... Read More
5.1k viewsAnswered >2 years ago
A 37-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: Many different classes of antibiotics can cause an elevation in lipase as a result of pancreatitis. Macrolides (azithromycin and its relatives), sulfa... Read More
5.1k viewsReviewed >2 years ago
A 23-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
May not be strep: If you can't swallow, can't breathe, get seen again. Otherwise, we grade your illness. First, is there pus on the tonsils? Second, does the patient ha... Read More
5.1k viewsAnswered >2 years ago
A 55-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Call your OB: This is a wound dehiscence (split). Did it occur in the setting of trauma, bending or straining? If she has fever, pus or redness around the wound or ... Read More
5.1k viewsReviewed >2 years ago
A 43-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Time is brain: If you or someone you encounter is having signs or symptoms of a stroke, the most important thing is seeking care immediately. Call 911 and get to an ... Read More
5.1k viewsAnswered >2 years ago
A 23-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
If that is all, no: More importantly, why are you getting daily headaches? You should see a neurologist who specializes in headaches in order to get to the root of the pr... Read More
5.1k viewsReviewed >2 years ago
A 40-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Rapid re-warming: If this is a thermal (freezing) injury, then the finger should be re-warmed. Submersion in warm (not hot) water can be done, for 15-30 minutes. The wo... Read More
5.1k viewsAnswered >2 years ago
A 36-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Go to an ER : There are a couple of concerns based on your description. First, you could have injured one of the blood vessels in your wrist, leading to either blee... Read More
5.1k viewsAnswered >2 years ago
A 43-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Support you through: If you wind up in the hospital for alcohol, the general approach is to make sure you have no traumatic injuries, make sure you are warm and safe while... Read More
5.1k viewsAnswered >2 years ago
A 39-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Real: Alcohol is a central nervous system depressant. Drinking too much can lead to a coma and loss of protective reflexes that prevent you from aspirating ... Read More
5.1k viewsReviewed >2 years ago
A 19-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Depends on downtime: Oramorph is a form of morphine. It is available in a sustained release formulation. The problems with this drug are the same with other opioids, namel... Read More
5.1k viewsAnswered >2 years ago
A 24-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Amnihook: They use a special tool called an amniotic fluid hook (amnihook) which looks like a crochet hook. It's inserted through the vagina and ruptures the am... Read More
5.1k viewsAnswered >2 years ago
A 40-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Go to the ER: Severe chest pain should never be taken lightly. The positional nature of the chest pain makes one think of a possible pericarditis (inflammation or i... Read More
5.1k viewsAnswered >2 years ago
A 31-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Congrats!: Congrats on your pregnancy! general recs are about 400 micrograms (mcg) per day for females of childbearing age. When pregnant, that jumps up to 600-8... Read More
5.1k viewsReviewed >2 years ago
A 20-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: You can get lung cancer from smoking anything. Tobacco, marijuana, herbs, etc. Inhaling the ash and smoke contains potent carcinogens that increase yo... Read More
5.1k viewsAnswered >2 years ago
A 37-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Infection or hernia: The most likely problem associated with a swollen belly button, if this is the first time you are encountering this at age 37, is either an umbilical ... Read More
5.1k viewsReviewed >2 years ago
A 47-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: You should be careful taking viagra with any medication used for angina that has nitroglycerin, as this can cause a dangerous drop in blood pressure. ... Read More
5.1k viewsAnswered >2 years ago
A 27-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Failure of therapy: Varies based on the patient. "co-morbid" conditions, or other medical illnesses that make the infection more concerning. Diabetes, cancer, chemotherap... Read More
5.1k viewsAnswered >2 years ago
A 27-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: You have to be very careful with a number of medications if you drink grapefruit juice or eat grapefruit. Grapefruit contains a compound that prevents... Read More
5.1k viewsReviewed >2 years ago
A 42-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
If better, no: If you have recovered from your acute alcohol intoxication, don't have any concerning symptoms, and are able to eat and drink, then you should be okay... Read More
5.1k viewsReviewed >2 years ago
A 31-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Above and below: Most food poisoning is characterized by nausea, vomiting and diarrhea. While most of the time the illness is self-limited and does no lasting harm, if... Read More
5.1k viewsAnswered >2 years ago
A 37-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Depends: This is something that depends on you. Your genetic makeup, your tolerance to alcohol and other factors like medications are important. The basic rule... Read More
5.1k viewsAnswered >2 years ago
A 39-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Based on weight: The dose of the medication depends on the weight of the child as well as the condition that they are being treated for. The best thing to do would be ... Read More
5.1k viewsAnswered >2 years ago
A 47-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Potentially : If you develop severe abdominal pain, bloating, fever or trouble having a bowel movement with nausea and vomiting - go to an er immediately. This coul... Read More
5.1k viewsAnswered >2 years ago
A 37-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
A hangover: Lack of energy, appetite. Nausea, vomiting and diarrhea are not uncommon. If you are shaky, feel your heart beating very fast, have any blood in your ... Read More
5.1k viewsReviewed >2 years ago
A 43-year-old male asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
No: Having a blood clot in the lung (pulmonary embolism) and leg (deep venous thrombosis) shouldn't stop you from living your life, as long as you are app... Read More
5.1k viewsAnswered >2 years ago
A 30-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Sure, but. . .: Unless you are already pregnant from a previous unprotected encounter, this is not going to be positive from the sex two days ago. It takes time (and ... Read More
5.1k viewsReviewed >2 years ago
A 56-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Go to the hospital: The symptoms you describe are very concerning given your age. Without something that makes you think of a muscle strain, this is even more concerning.... Read More
5.1k viewsReviewed >2 years ago
A 19-year-old female asked:
I'm about 4-5 weeks pregnant and i have had a little light brown discharge after sex, is this normal
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
It can be: Some light bleeding or spotting during the first trimester of pregnancy (up to 14 weeks) can be normal, without any harm to the baby. Intercourse is a... Read More
5.1k viewsAnswered >2 years ago
A 25-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Usually not: Panic attacks can be stimulated by a variety of triggers, physical, emotional and mental. The triggers are not always easily identifiable or clear. Th... Read More
5.1k viewsAnswered >2 years ago
A 16-year-old female asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Yes: Tylenol (acetaminophen) when taken in larger than recommended doses can cause damage to the liver in a delayed manner. This can lead to the patient ne... Read More
5.1k viewsAnswered >2 years ago
A 43-year-old member asked:
Dr. Howard Grelleranswered
Emergency Medicine 24 years experience
Water everywhere: Ops prevent the breakdown of acetylcholine. Excess of this leads to excess stimulation of the cholinergic nervous system. This is manifest by salivati... Read More
5.1k viewsReviewed >2 years ago
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
TestimonialsRecommendations and Thank you notes are endorsements given from patients or other doctors.
Recommendations and Thank you notes are endorsements given from patients or other doctors.
2
Recommendations
141
Thank you notes
HealthTap member
Mar 30, 2015
Dr. Greller is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Greller is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thanks for your quick reply! Thank you very much, I already do a lot of tests, and any reveal nothing bad, but your words makes sences to me . I will visit mi Dr soon.
HealthTap member
Thanks! Yes i always wear a hemet! and my birthday was a blast! Cant wait till my 28cus thats when ill be graduating med school
HealthTap member
Thank you, your answer was very helpful! Thanks for the answer to what to do now to make him feel better!
Education & Training
Medical/Graduate school
New York University School of Medicine, NY
Graduated 1998MD
Residency
Hospital of the University of Pennsylvania
Completed 2002
Affiliations
American College of Medical Toxicology
Medical Toxicology Foundation
American Academy of Clinical Toxicology
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