What patients are saying
Overall rating
4.42
Average wait time
4.60
Bedside manner
4.41
“This was a well run office. The front desk was friendly. Dr Ko was patient and answered my questions. ”
Brenda J.March 16, 2026
“The attention from the staff was heart warming. Everyone greeted me with a smile. The office setting was clean and quite. I felt I was in good hands.
Once called in nurse and physician listened to my explanation and thoughts until I was done. I chose Dr. Ko to be my primary physician, my last physician was hard to get an appointment without calling 2-3 times. It's very easy to book an appointment using zocdoc app. I am looking forward to our relationship with Dr. Ko. ”
Brian Y.January 29, 2026
About Dr. Pan Ko
**Please note, Sylvan Infectious Diseases has a 24-hour cancellation policy. Patients who cancel or reschedule with less than 24 hours’ notice may be charged a cancellation fee.**
Are you worried that you might be suffering from an infectious disease? If you're in the Englewood Cliffs area, make sure to visit Dr. Pan S. Ko's office. He is a board-certified physician in both infectious disease and internal medicine. If you feel that something isn’t right with your body or have been experiencing unusual symptoms lately, don’t wait—see a doctor promptly.
Dr. Ko earned his Doctor of Medicine from St. George’s University School of Medicine. He completed his residency and fellowship at Seton Hall University, Saint Michael’s Medical Center. His extensive training equips him to provide expert care in infectious diseases and internal medicine.
Patients consistently praise Dr. Ko for his professionalism and pleasant bedside manner. He doesn’t rush to conclusions but uses all necessary tests and equipment to accurately diagnose your condition. He also manages HIV, hepatitis B and C, vaccinations, antibiotic infusions, and much more.
The office is conveniently located, and Dr. Ko is always accepting new patients. Whether you’re seeking care in Infectious Disease or Internal Medicine, Dr. Pan S. Ko, MD, in Englewood Cliffs, NJ, is here to meet your needs. We specialize in delivering the best care for all our patients and strive to achieve excellent results with every service, guaranteeing 100% customer satisfaction every time.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
UnitedHealthcare Oxford
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Acute urinary tract infection
Acute skin infection
Infection of joint or bone
Acute urinary tract infection
Acute skin infection
Infection of joint or bone
Office locations
Sylvan Infectious Diseases (1 of 2)
400 Sylvan Ave, Ste 108, Englewood Cliffs, NJ 07632
1 of 2
Education and background
Practice names
Hospital affiliations
- Englewood Hospital and Medical Center
- Holy Name Hospital
- Hackensack University Medical Center at Pascack Valley
Board certifications
- American Board of Internal Medicine
- Infectious Disease (American Board of Internal Medicine)
Education and training
- Medical School - St. George's University School of Medicine, Doctor of Medicine
- Seton Hall University, Saint Michael's Medical Center (Residency)
- Seton Hall University, Saint Michael's Medical Center (Fellowship)
Professional memberships
- American College of Physicians
- Infectious Diseases Society of America
Languages spoken
- English
- Korean
Provider's gender
Male
NPI number
1083851687
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.42
Wait time
4.60
Bedside manner
4.41
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
260 reviews
Most relevant
This was a well run office. The front desk was friendly. Dr Ko was patient and answered my questions.
March 16, 2026Brenda J.Verified patient
I liked Dr. Ko’s receptive manner and he listened to everything I was interested in conveying about my condition.
December 8, 2025David O.Verified patient
Staff was very friendly and Dr Pan ko was also very nice and explain well thank you ??
January 20, 2026Misun P.Verified patient
Excellent visit, listened and took his time with all of my questions. Put the anxiety at ease.
May 12, 2025Logan N.Verified patient
Great experience and a clear information regarding the health issue from the doctor
April 19, 2025Aretas C.Verified patient
It was an OK visit. I have to wait for blood test to see. So my rating of the follow up is more important to me.
More than 1 year agoInitials hidden
Very nice Dr. Took blood and evaluated the results. Sent me the full print out and answered all my questions.
November 5, 2015Luca S.Verified patient
He is excellent! Staff very helpful. Listened and read the documents I presented. HIGHLY recommended!!
October 27, 2015Nancy G.Verified patient
Yes, I do cause he is a good Doctor they can write here for me
May 5, 2025Gloria B.Verified patient
Excellent care and attention to the issue and a thoughtful decsion making process re my treatment
October 23, 2015Nancy G.Verified patient
Extremely knowledgeable and answered all my questions and concerns
October 29, 2024Harry S.Verified patient
He knows how to help you and is available to you, as needed. He has a very good staff.
September 6, 2019Susan O.Verified patient
Dr listened. Gave me what I needed than my regular obgyn. Very helpful!
November 1, 2023Aaliyah E.Verified patient
Hardly any wait he was very clear in going over my blood work and very helpful
August 30, 2016Heather V.Verified patient
I felt my time was appreciated and care taken to answer my questions
January 30, 2023Luke S.Verified patientVideo visit
Dr Ko had a very good analysis for the treatment which he prescribed.
February 18, 2022Cynthia D.Verified patient
Answered my questions and listened to my concerns.
August 14, 2024Estrelita M.Verified patient
Staff was very informative and dr was extremely patient and knowledgeable
August 4, 2015Jessica L.Verified patient
Very impersonally felt as if he rushed me, great staff though.
More than 1 year agoInitials hidden
Personable, answers all questions, results always on time.
August 2, 2021Initials hidden
Smart man, great bedside manner, so blessed he is my Dr.
More than 1 year agoInitials hidden
This guy doesn’t listen to patients and rushes them
More than 1 year agoInitials hidden
Very Cordial, very knowledgeable, and very caring.
November 23, 2015Eliezer B.Verified patient
The attention from the staff was heart warming. Everyone greeted me with a smile. The office setting was clean and quite. I felt I was in good hands.
Once called in nurse and physician listened to my explanation and thoughts until I was done. I chose Dr. Ko to be my primary physician, my last physician was hard to get an appointment without calling 2-3 times. It's very easy to book an appointment using zocdoc app. I am looking forward to our relationship with Dr. Ko.
January 29, 2026Brian Y.Verified patient
This was a hospital follow up and I was pleased.
November 26, 2025Maribeth G.Verified patient
Dr Pan Ko understands the best way to treat the medical problem at hand and explains it so that the patient can understand in laymen terms.
Less than 6 months agoStanley G.Verified patient
Entire experience was above and beyond. Greeted by staff as soon as I walked in… minute later vitals were done and answered questions. Few more minutes and I was seen by MD. Very organized…
August 13, 2025Amy D.Verified patient
The appointment was scheduled and confirmed in Westwood office but it turned out the doctor was working in a different office that day.
August 8, 2025Initials hidden
My frustration with this Provider varied in different ways. His lack of eye contract while discussing the issue at hand was my FIRST complaint.
The SECOND was what appeared to be this underlying tone of frustration he took with me while addressing several of my questions regarding MY HEALTH.
I never had this HEALTH ISSUE BEFORE , AND I WAS LOOKING FOR THIS PROVIDER TO REASSURE AND GUIDE ME ON PREVENTIVE MEASURES AND HIS DIRECT RESPONSE TO ME "WAS TO USE AN OVER THE COUNTER SPRAY AND CONTINUALLY LOOK FOR SYMPTOMS THAT I HADN'T DISPLAYED IN THE FIRST PLACE."
This medical issue was brought to my attention by another provider. My recent labs had raised several alarms IMMEDIATELY. Hence, the provider recommended that I see an Infectious Disease Specialist.
As patients, we place ALOT OF BLIND TRUST in the providers we encounter for whatever medical issue we may have.
My experience with THIS PROVIDER WAS NOT GREAT, AND I WILL LIKELY NOT RETURN TO THIS PROVIDER EVER AGAIN.
March 9, 2025Lian P.Verified patient
Excellent
March 4, 2025Carole Ann H.Verified patient
Great
January 21, 2025Marcie D.Verified patient
Awesome
January 13, 2025Marcie D.Verified patient
I have lymes disease and I told him my mane symptom was headaches and he told me to take Advil or Tylenol which I know is not working for me, he was no help
January 13, 2025Julia M.Verified patient
Aw
December 6, 2024Marcie D.Verified patient
Very thorough I explained my symptoms and past history and he ordered bloodwork that basically covered everything relevant when most doctors would just do a general CBC panel.
September 9, 2024Emily S.Verified patient
Would not recommend.
Comes off very arrogant and as if you are wasting time.
My “consult” was less than 5 minutes.
No exam. No evaluation.
Glanced over bloodwork showing very elevated levels for 3 viruses, flipped the papers and said “there’s nothing was wrong, why are you here?”
Bloodwork showed elevated levels for 3 viruses and confirmed by an internist and immunologist.
More than 1 year agoInitials hidden
Very friendly staff . Dr listen you your concerns and answer all your question . Have visit Dr twice and have been very profesional both times
August 28, 2024Damary C.Verified patient
The doctor's bedside manner was less than desirable. He greeted med as he walked in and arranged his equipment, not making eye contact or stopping what he was doing in any way. Next he said, "So why are you here?" He was very dismissive and in the end the appointment lasted less than 15 minutes total and he never touched my body once. He simply suggested an over the counter supplement and sent me on my way. Would not recommend and won't be returning.
August 8, 2024Joy B.Verified patient
The nurse who did my intake was amazing! Super friendly and helpful. Dr. Ko was kind and made me feel better about my diagnosis.
More than 1 year agoInitials hidden
Staff was friendly and they worked quickly.
March 6, 2024Jonathan S.Verified patient
Had my first appointment today & had a great experience. The office staff was friendly & efficient. Dr. Ko listened to everything I had to say & didn't dismiss or ignore anything. I can't say the same for every provider I saw for my issue. I would recommend anyone at least try this office to see if it's a good fit for your needs.
February 6, 2024Jessica B.Verified patient
Once again Dr. Pan Ko is amazing. Went to see him prior to going on my schedule trip to Europe to make sure I was ok to go. I explained a new problem that was occurring and he suggested an ointment, actually he gave it to me for free. I didn't think much of it. That evening I put it on and it was a miracle. The area immediately started clearing up. Not completely of cause since it was the first time using t but about 50%. I find Dr. Ko amazing. He clearly listens to your concerns and knows exactly what to do. If you have chosen Dr. Ko you are in good hands I assure you.
September 10, 2023Maritza B.Verified patient
Great. The staffs were friendly
More than 1 year agoInitials hidden
Very helpful/friendly staff. Dr. Ko is a professional and down-to-business type but overall it was a positive experience and my own doctor holds him in high esteem.
June 6, 2023David D.Verified patient
I had an appointment today at 1:00. I sat in the virtual waiting room for about 15 minutes before calling the office to see what the hold up was. The doctor wasn’t even in the office. The receptionist told me he would be there at 1:30 which was already 30 minutes past my appointment time. At 1:30 I get another phone call this time from the doctor himself & off the bat he brings up antibiotics without looking at my wound, or really talking to me about anything but my allergies. “Did I give you antibiotics last time?” I had never seen this doctor before so no he did not give me antibiotics last time. Meanwhile I’m still in the online waiting room. I explain that this has been a reoccurring issue for almost two years & that I made this appointment to find out what’s going on not to just be given antibiotics without him even looking at the wound or talking to me about what has been going on. He said he could be in the office in 15 minutes but I was already done at this point. Very upset.
March 27, 2023Alexis G.Verified patientVideo visit
I feel like i went for no reason. Went over boo’d work from my last visit that was already discussed days after my last visit. They were pleasant I just feel my appointment could have been done over zoom or the phone.
More than 1 year agoInitials hidden
Dr. Ko was professional and listened to my needs and concerns after many failed attempts to find an ID doctor. He immediately scheduled me for the procedure I needed as he recognized the necessity. It was pleasantly short and expeditious. I appreciated it.
November 15, 2022Initials hidden
I felt very comfortable with Dr Ko and his office staff. They were all very friendly, intelligent and thorough in taking all of my medical history. I would recommend him to anyone who needs an infectious disease Dr.
October 7, 2022Debra S.Verified patient
Just appointment Dr.Ko was open to suggestions suggested by me. He even told me what doctors pursue I should pursue even when he does not have the expertise to resolve my condition. He didn’t waste either of our time by making come back 2 weeks for a follow up just to be told to wait another 2 weeks with no solid plan. He did everything he could during our 1st appointment from labs to advice on what next steps should be taken. What more can you ask for from a doctor. As far as his staff they are also very professional they took great notes and even fax over prescriptions in a timely manner. I’m grateful for the experience and thank you for the help Dr.ko and staff
May 26, 2022Initials hidden
Smart, efficient, caring doctor. Quick diagnosis and treatment(iv antibiotics started in the office that day). Set up home care with infusion nurse. Great experience.
April 12, 2022James K.Verified patient
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How soon can I make an appointment with Dr. Pan Ko?
Generally, Dr. Pan Ko has appointments available on Zocdoc within 1 week. You can see Dr. Ko's earliest availability on Zocdoc and make an appointment online.
Is Dr. Pan Ko accepting new patients?
Dr. Pan Ko generally accepts new patients on Zocdoc. You can see Dr. Ko's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Pan Ko accept my insurance?
Choose your insurance plan to verify if Dr. Ko is in-network.
Can I make an appointment with Dr. Pan Ko online?
Yes, you can make an appointment online with Dr. Ko using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. Pan Ko affiliated with?
Dr. Pan Ko is affiliated with Englewood Hospital and Medical Center, Holy Name Hospital, and Hackensack University Medical Center at Pascack Valley.
What practice does Dr. Pan Ko work with?
Dr. Pan Ko works with Sylvan Infectious Diseases.
Where is Dr. Pan Ko's office located?
Dr. Pan Ko has 2 office locations, including in Westwood and Englewood Cliffs, view full addresses on Dr. Ko's profile.
Which board certifications does Dr. Pan Ko have?
Dr. Pan Ko is certified by American Board of Internal Medicine and Infectious Disease (American Board of Internal Medicine).
What are common reasons for patients to see Dr. Pan Ko?
Dr. Pan Ko frequently sees patients for COVID-19 Testing, Illness, Infection Consultation, Pre-Travel Consultation, and Sexually Transmitted Infection (STI). You can see other visit reasons for Dr. Pan Ko on their profile.
What languages does Dr. Pan Ko speak?
Dr. Pan Ko speaks English and Korean.
How do patients rate Dr. Pan Ko in reviews?
260 patients have reviewed Dr. Pan Ko. The overall rating for this doctor is 4.42/5. They have a 4.41/5 rating for bedside manner and a 4.6/5 rating for wait time. You can read individual reviews and ratings on their profile.