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Dr. Matthew Cahill

Internal Medicine
Bryn Mawr, PA
26 years experience male

Locations

Bryn Mawr Medical Specialists Association

Bryn Mawr, PA

Address

Bryn Mawr, PA
Directions

My office hours

Wednesday: 9:00am - 5:00pm
Show more

Insurances accepted

Independence Blue Cross Group

About

Bio

I was born and raised in the Philadelphia area and continue to live and practice here. I have a wide variety of medical experiences and remain dedicated to helping patients find a way to be as healthy as they can be. I like the satisfaction of seeing patients improve, but I am comfortable with telling patients when they may not expect improvement and helping them to plan around those circumstances.

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.

Internal Medicine

Geriatrics

Hospital-based practice

Palliative Care

Licenses

United States: Pennsylvania

Languages spoken

English

Doctor Q&A

124 Answers
15 Agrees
The number of answers this doctor has agreed with.
A 32-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Review with MD: Around here thyroid is a once a day medicine...please review with your doctor, I suspect some confusion... Best of luck and feel better soon. Rememb... Read More
A 26-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Interactions: herbal supplement interactions with prescription medications are poorly studied. It may be safe to supplement with some OTC herbal supplements, but ... Read More
A 36-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Unclear by symptom: Losing strength is very concerning, diagnoses may include cord disease, neuropathy, central disease like MS, ulnar tunnel syndrome., myopathy but noth... Read More
A 19-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
See a provider: You must see a health care provider. I really need more information to comment, particularly how heavily you are bleeding, but put simply this is ju... Read More
A 26-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
You will know: Keep your Epi pen with you at all times. Make sure it is up to date. General symptom-those that got you the prescription in the first place but espec... Read More
A female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Possible, unlikely: Most likely thing that occurred is swelling that's impacting the nerve. Swelling is common from iintramuscular injections. It is possible a nerve was... Read More
A 26-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Too complicated: It is too complicated to answer your question adequately in this forum. If you feel you're not getting adequate treatment from your physician, find a ... Read More
A female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Not normal: If you had palpitations WITHOUT lightheadedness, maybe watch and wait. You need an EKG right away to make sure there is nothing seriously wrong. You... Read More
A male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Keep trying: Overall, I can't think of any rash that would be transmitted by the brief casual contact you desribe. 1% hydrocortisone product may help if this is d... Read More
A 36-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Not entirely clear: good news is there are no significant organs in the left upper abdomen-( e.g. gallbladder or appendix). The relationship to bowel movements raises the... Read More
A 31-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Interesting question: In theory 220- age is maximum heart rate, but I have seen some people exceed this formula, the real question is target heart rate- probably 60-70% o... Read More
A male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Normal, probably: You are describing the normal physiologic process of vein drainage. When you raise your hands gravity carries the blood in veins back towards the hear... Read More
A 38-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Watch carefully!: Hopefully this small lump is nothing. You could elevate the leg and try warm compresses on the area. A small hematoma (blood collection) may cause t... Read More
A 26-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Probably: When your neck and head hurt acutely you should probably see a doctor urgently...Meningitis is the probable diagnosis, although some viral entities ca... Read More
A female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Need urgent eval: If the quality of drainage has changed, you need to be evaluated urgently by your surgeon.
A female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Get seen: Doctors should avoid giving potentially distressing information over the phone. I think that they are telling you that you have normal changes after ... Read More
A 29-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Talk to someone!: You don't have cancer! You have something even WORSE- fear of cancer...when you share this feeling with someone you trust, they will pop this fear lik... Read More
A 20-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Probably OK: There are good websites where you can check what medications are safe in pregnancy but the drug I believe you mean clonazepam or klonopin is a benzodi... Read More
A 19-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Short answer YES: You need an eval. Pain that comes and goes may be part of normal bowel function or irritable bowel, but pain that comes and stays needs an eval. Ove... Read More
A 28-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Yes! Go back!: It is impossible to say what you have from your symptoms. This is likely a supraventricular tachycardia. You need further evaluation. At your age this... Read More
A female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Well...get healthier: Do you want the truth? or a feel good answer? You are overweight for a woman at 5'10" unless you are a serious body builder. You goal should be a wei... Read More
A 22-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Get seen: Don't wait, I suspect you have an undiagnosed infection, if it progresses you may get quite ill. It's really impossible to say based on your descript... Read More
A 43-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Interesting: Obviously, this is not from the appendix! What have you tried to help? Salt water or tea will help routine throat discomfort. Ibuprofen or Tylenol (... Read More
A 36-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Need eval: Back pain and stiffness are normal. True weakness related to these are NOT. You need a medical evaluation as soon as possible.
A female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
It depends: Do you usually exercise? Can you reproduce the pain? Right side of abdomen or chest? Did you try anything for pain? Did you have this before ever?... Read More
A 28-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Ask your prescriber?: What symptom were you treating? Is it better? These new symptoms sound worse! There are many drugs that might help you- why not discuss your experie... Read More
A 22-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Probably : The appendix is not an essential organ -after removal your health should remain the same. The abnormalities described, in particular weight loss, can ... Read More
A 18-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
No: Once menstruation starts it must run its course because you are shedding endometrial lining, there is no way to stop or reduce your period once it has... Read More
A 26-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Uncertain.: Hope surgery unlikely. You leave out key details - do you have an immune deficiency or poorly controlled diabetes. In addition to an ENT doctor I woul... Read More
A 38-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Get seen!: We both know this is not normal! A university center with Oral Surgery near you may offer lots of free care because the government pays for the train... Read More
A 27-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Stretch/ Massage: You describe a very common problem, People who use phones or computers routinely. Be careful how you utilize your work machines. Ice or heat my benefi... Read More
A 37-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Ignore: Get adequate hydration and protein possibly together.
A 42-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Probably not: Your exact repair is not entirely clear from your message however in general only months after repair the bones is as strong or stronger than it was p... Read More
A 31-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Sure: Doctors usually consider their relationship with patients to be lifetime! Get back in and reestablish it.
A 18-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Get some support: I want say : good for you! You have recognized anorexia as UNhealthy! You have recognized that obsessing about anything is not healthy! Have you rea... Read More
A 20-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Can you be seen?: See a doctor if you can given headache and neck pain. Lack of fever is VERY consoling that this is nothing "serious" Viruses commonly cause this syndr... Read More
A 25-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Well: Some people are allergic to these scents. Otherwise there is no health concern. Be careful though of house fire from unattended candles.
A 25-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Can't be sure: I suggest you try some nasal saline spray or wash, 3-4 x a day. Nosebleeds are common, commonly worse in the winter. NEVER pick your nose - trauma i... Read More
A 25-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
See a doctor: You don't give enough info for a diagnosis. Duration and known recent injury would matter. Your description sounds concerning for meniscus tear. O... Read More
A 20-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
tested? ask tester!: Your question is interesting, but incomplete. Most importantly, what known exposure you had and what treatment if any? Next what test did you have to ... Read More
A 36-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
See your doctor: You don't say where the pain is, which would tell a lot. Morning stiffness is an arthritis symptom and you may have a new or even serious arthritis r... Read More
A 31-year-old member asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Yes: Not sure why you want to, but this should work fine if you don't spill any.
A 20-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Try changing diet?: Bowel sounds, even loud ones are normal. Gas may cause more sounds like this and may be worsened by carbonated beverages, vegetables, milk or a vari... Read More
A 31-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Yes: Your question is VERY smart. It could be your pituitary- or other causes. Overall Endocrinologists handle this complex thyroid question, so you ... Read More
A 38-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Ask your doctor: Postural Orthostasis maybe helped by florinef (fludrocortisone). As it seems you know it is not without risk. You need and deserve to have a full co... Read More
A 46-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Probably not: With diagnoses like Marfans and hypothyroid, you need an excellent doctor. If you are truly gaining height at this age it is VERY unusual. One condi... Read More
A 55-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Discuss with MD?: I think the key question is -have you had a coronary event? If so I would NOT decrease aspirin. data for PRIMARY prevention is a little less compel... Read More
A 25-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
See your doctor: I am glad to hear you are not dead. I would not be surprised that your head still hurts after this. I strongly suggest seeing your doctor. You have... Read More
A 26-year-old male asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Should be OK: Actually this is normal- all healthy people "aspirate". The cough that occurs naturally will clear most liquids and solids. The lungs have further m... Read More
A 31-year-old female asked:
Dr. Matthew Cahill
Internal Medicine 26 years experience
Uncertain: You should have had this answer from the doctor who made the diagnosis. You need to return to them on a regular basis. There is no certainty that the ... Read More

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

1
Recommendations
102
Thank you notes
HealthTap member
Nov 26, 2015
I am grateful for this doctor this Thanksgiving!
HealthTap member
This was very helpful. Thanks! Short-lived soreness/aches that have now more or less subsided. Vit D was in low 30's, so may have been the cause. May also have stress-induced rosacea; worried was Lupu...Read More
HealthTap member
This made me feel good. Thanks! You have really helped soothe my worries. I have recently been feeling my heart more and more, in my fingers, head, etc, so I'm glad this is nothing to worry about.
HealthTap member
This was very helpful. Thanks! The situation did resolve itself with the help of a laxative/ stool softener. But now I know for future reference. Thank you for your time!

Education & Training

Medical/Graduate school

Hahnemann Medical College, PA
MD

Residency

HAHNEMANN UNIVERSITY HOSPITAL
Completed 1999

Awards

Top General Internist, Second Place, Pennsylvania - Fall
2015
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