U.S. doctors online nowAsk doctors free

Dr. Larry Xanthopoulos

Pediatrics
MA
22 years experience male

About

Bio

Enter your bio...I received a BA in Biology at Brandeis University in Waltham, MA. I attended medical school at Boston University and trained in pediatrics at the Floating Hospital for Children at Tufts Medical Center in Boston. I have practiced high quality pediatrics in an outpatient and inpatient setting for the past 12 years in the suburbs of Boston. I have been the health consultant to many public and private schools. I have served on the Board of the Independent Physician Association at Emerson Hospital in Concord, MA and helped in establishing the medical home, assisted in electronic medical integration and representing physicians in their contracting with major insurers. I am well versed in all aspects of pediatrics including behavioral issues.

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.

Pediatrics

Licenses

United States: Massachusetts, New Hampshire

Doctor Q&A

1.3K Answers
50 Agrees
The number of answers this doctor has agreed with.
A 46-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
URI / sinusitis: Typically an upper respiratory illness can predispose to a decrease in the ability of fluid in the middle ear to be drained through the eustachian tub... Read More
A 24-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Benzoyl peroxide: Are you using anything? If not then consider a benzoyl peroxide cream or gel nightly. Also wash face with mild soap 2-3 times a day. If benzoyl pero... Read More
A 42-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Depends on workout: There is no simple answer although the maximal heart rate is typically 220 minus the age of the patient. So for a 16 y/o it is about 200 or so with a... Read More
A 45-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Tazorac (tazarotene): Apply tazorac (tazarotene) every other night to decrease side effects. Apply moisturizer to the face to keep from getting too dry
A 35-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
No: Generally damage to brain cells is irreversible
A 40-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Need ear drops: What you are describing sounds like an otitis externa (swimmer's ear). If this was an otitis media (ear infection) with a perforated ear drum it woul... Read More
A 19-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Many possibilities: The long term effects of bacterial meningitis can vary from person to person and depend on many variables. Some possibilities can be death, hearing lo... Read More
A 19-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Test of cure: It would be a good idea to do a test of cure after completing abx course.
A 43-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Possibly: light therapy boxes are made in such a way to generally filter out UV light but it may not be possible 100% of the time. So if you especially have se... Read More
A 34-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Yes it is: The stool (poop) you describe can be quite normal. Yellow/greenish stool is normal for a baby who is either breastfeeding or formula feeding. Formu... Read More
A 22-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Poisoning?: Any young siblings in the house? Sometimes they want to be helpful and may give the baby something that they should not, like a medication, food or o... Read More
A 34-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Carpal tunnel: Do you use the computer a lot or have a desk job? Could be carpal tunnel syndrome. see your doctor
A 20-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Vaginitis: This does not sound like an emergency. I would make an appointment with your regular doctor to get this checked out especially if you try the baths a... Read More
A 27-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Sounds appropriate: If your 3 month old has nasal congestion and lots of nasal discharge it is a good idea to squirt nasal drops in the nares and suction with a bulb suct... Read More
A 43-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Growth: A cholesteatoma is a growth in the middle ear. It can be painless until it grows enough and then it can damage the middle ear causing hearing problem... Read More
A 27-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Find out why: How old is your son? Is this an infant, a toddler, what age group are we talking about? Also, what does non-stop mean? Infants with colic may cry f... Read More
A 32-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Yes: If used appropriately it should not be an issue. If you are drinking listerine to get drunk that is a different issue and that can have negative effe... Read More
A 17-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Hamstring?: You might be talking about your hamstring muscle which inserts into the back of the knee. Ice on and off for a few days, motrin, rest.
A 21-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Can vary: What are your symptoms? Fever alone or level of fever alone are not diagnostic of meningitis. Do you have headache, fever, neck pain, vomiting? Thes... Read More
A female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Complex question: Obviously if a patient is having neurological deficits, new onset seizures then there may be changes in the brain matter including necrosis of brain t... Read More
A 23-year-old male asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Emergency: If you are having L scrotal, lower abd pain and there is swelling you need to worry about testicular torsion potentially which is a potential emergenc... Read More
A member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
See a doctor: I am worried about the pain with laying down, sometimes that may be a sign for pericarditis, an inflammation of the pericardium which is a layer that ... Read More
A 22-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
No: Risk of tetanus is with a cut in the skin involving old rusted metal. On a separate note you should have a tetanus booster every 10 yrs or so anyways
A 30-year-old male asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Elevate head of bed: Elevate the head of the bed by putting folded sheets UNDER the mattress. Run a humidifier and also bulb suction the nose if lots of visible mucous in... Read More
A 27-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Yes: That is a significant height for a 3 y/o. I would have her seen at the Dr.'s office and monitored for a little while to make sure pt is acting well. ... Read More
A male asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Please go to ER!!!!: This might be an acute surgical condition called testicular torsion. Is the scrotum swollen, or blue? This is a surgical emergency and if not operat... Read More
A 18-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Take pregnancy test: You should see the dentist if there is a concern about your teeth. As far as whether you are pregnant, take a pregnancy test. Let the dentist know whe... Read More
A 23-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Viral gastroenteriti: Any fever, blood in the stool? It sounds like symptoms of viral gastroenteritis. Drink lots of clear fluids. Abd pain is due to inflammation of the ... Read More
A 24-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Differin (adapalene) 0.01% ?: Do you mean differin (adapalene) 0,1% (0.01% does not exist) or do you mean tretinoin 0.01%? Lets assume you are using differin (adapalene) 0.1% crea... Read More
A 33-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Pneumonia?: A typical viral illness will last about a week, so since patient has been sick for 2 weeks it may be more than a viral illness. Is the cough day and n... Read More
A 59-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Not to worry: The color of the stool can be influenced by bilirubin excretion in the GI tract, the foods you eat, and also your gut flora. Green stool is not by it... Read More
A 36-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
No: I am not aware of ecstasy overuse causing infertility, however what you really need to worry about is the long term effects on your brain cells. That... Read More
A 42-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Typically yes: In general your drug test after 5 weeks of not smoking (if its true) should be negative. HOWEVER, there is variability in the excretion of THC from i... Read More
A 28-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Question?: Not sure exactly what your question is but if you are asking how can you increase your breastmilk supply you should try to breastfeed more often than ... Read More
A 18-year-old male asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
No difference: Both Adderall (amphetamines) and Focalin (dexmethylphenidate) (methylphenidates) are the two classes of stimulants that are most effective in treating... Read More
A 17-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Gastroenteritis?: How long have you had symptoms? It is possibly the beginning of a gastroenteritis. Drink fluids for now, rest. If not improving seek medical attent... Read More
A 37-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
CMIA: Stands for chemoluminescent microparticle immunoassay. This is the way the a specific rubella antibody test is done. This is a typical test done in ... Read More
A 26-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Yes and no: Stress or anxiety per se will not cause a birth defect. However if you do not take care of yourself, if you don;t rest, don't sleep, don't eat right,... Read More
A 22-year-old male asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Safe and healthy: It is safe to masturbate. Make sure you do it in the privacy of your home and as long as it does not interfere with your ability to function or overa... Read More
A female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
It is possible: scaphoid fx can be a tricky diagnosis and is one of the more missed fractures. That can have deleterious effects if not found out early enough. May ... Read More
A female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
2-3 times a day: Moisturizers in general are safe and can be applied multiple times a day on the body. Try using either cream or ointment which work better and avoid ... Read More
A female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Allergic esophagitis: It is possible this is eosinophilic esophagitis, which is an allergic condition in which allergic foods cause inflammation in the esophagus and may pr... Read More
A female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Parental consent: or notification. Depending on the state the patient needs either one or both parental consent or notification. There may be 2 or 3 states that do no... Read More
A 19-year-old male asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Highly unlikely: This is highly unlikely. Typically prostate problems present after age 50 or so. However it is never impossible for any single individual to have th... Read More
A 33-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Try neb or spacer: How old is this toddler? There is more and more research showing administering albuterol with a spacer to a toddler is more effective than using a ne... Read More
A 34-year-old member asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
See GI doctor: If the stools are truly consistently white that will imply there is lack of the pigment bilirubin which can point to a condition affecting bilirubin p... Read More
A 31-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Yes, possibly: Keep in mind that infants in general have smaller airways, smaller reserve and can have more significant symptoms and morbidity than adults. Now add ... Read More
A 30-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
It should be: It also depends what you mean by "drinking alcohol". Are you having 1-2 drinks with dinner or are you getting "hammered". It takes about 3 hrs per d... Read More
A 19-year-old female asked:
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Moisturize and abx: Try to moisturize and apply topical antibiotics so the denuded area does not get infected. This sounds like a 2nd degree sunburn. Aloe vera might he... Read More

90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.

Ask doctors free
Answer emailed
in 24 hours or less

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

16
Recommendations
825
Thank you notes
Feb 7, 2015
Dr. Xanthopoulos is a superb pediatrician, much loved by his patients & their families, also held in great respect by his peers.
HealthTap member
Nov 27, 2015
Dr. Xanthopoulos helped us with giving best advice on how to fix kid's milk intake when i lost hope on all other doctors i consulted . Thank you soo much.
HealthTap member
Apr 12, 2015
Honestly the best consult I have ever had, he explains everything and will answer all your questions. Highly recommend him to any patient needing care!
HealthTap member
This was very helpful. Thanks! I'm so greatful for your expertise on this horrible situation! If that doesn't work I will then go to doc! Thank you I feel confident with you treatment option to try fi...Read More
HealthTap member
This was very helpful. Thanks! My reaction was hives-lots of them that started to appear less than 12 hours after I ate the octopus so I'm assuming that the octopus was the cause.
HealthTap member
This was very helpful. Thanks! Baby felt warm and was crying nonstop. It seems like her crying caused her temp to be high. Feels normal to the touch and the crying stopped.

Education & Training

Medical/Graduate school

Boston University School of Medicine, MA
Graduated 1999MD

Residency

TUFTS MEDICAL CENTER
Completed 2002

Awards

New England Hellenic Medical and Dental Society
Top Pediatrician, Second Place, Massachusetts - Summer
2014
Top Pediatrician, First Place, Massachusetts - Fall
2014

Affiliations

Massachusetts Medical Society
American Academy of Pediatrics
Diplomate of the American Board of Pediatrics
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