Browse specialties
Chiropractors
Dentists
Dermatologists
Ear, Nose & Throat Doctors
Endocrinologists
Eye Doctors
OBGYNs
Ophthalmologists
Optometrists
Orthopedic Surgeons
Podiatrists
Primary Care Doctors
Psychiatrists
Psychologists
Therapist-Counselors
See all specialties A-Z
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
Welcome to Zocdoc!
Book local doctors who take your insurance
Sign up
For providers
Grow your practice
For patients
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
HelpList your practice on Zocdoc
Sign up
Dr. Jim L. Koo, MD

Dr. Jim L. Koo, MD

Internist
3680 Hill Blvd, Jefferson Valley, NY
5.00
“Ive been with Dr Koo for many years and it doesnt get any better. He listens and he is very responsive to all my needs. Fantastic Doc”
Highly recommended
100% of patients gave this doctor 5 stars
New patient appointments
Appointments available for new patients on Zocdoc

Book an appointment for free

The office partners with Zocdoc to schedule appointments

Scheduling details

  1. See if they are in network

What patients are saying

Overall rating

5.00
“Ive been with Dr Koo for many years and it doesnt get any better. He listens and he is very responsive to all my needs. Fantastic Doc”
Less than 6 months ago
“He is the best Doctor Ive ever had. He genuinely cares and is extremely knowledgeable, thorough and kind. Im very grateful for him.”
Less than 6 months ago

About Dr. Jim L. Koo

Dr. Jim L. Koo is a caring internist in Jefferson Valley, NY. He sees patients at Optum Medical, New York. Dr. Koo is also affiliated with Putnam Hospital Center. He holds several accolades, such as New York Magazine Best Doctors Award: 2021-2024, Best Doctors in America: 2013, 2015, Castle Connolly Top Doctor: 2018-2024, and Westchester Magazine: 2018-2024. Dr. Koo earned his medical degree from the Albert Einstein College of Medicine. He completed his internship and residency in internal medicine at Westchester Medical Center. Moreover, he is certified by the American Board of Internal Medicine.

Is this doctor in your insurance network?

Enter your insurance carrier and plan

  1. choose insurance

In-network insurances

Aetna
BlueCross BlueShield
Cigna
Emblem Health
UnitedHealthcare
UnitedHealthcare Oxford
200+ more in-network plans

Areas of expertise

This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Chronic diabetes
Lower back pain
High cholesterol
Upper respiratory Infection (URI)
Chronic high blood pressure
Emphysema (COPD)
Chronic diabetes
Lower back pain
High cholesterol
Upper respiratory Infection (URI)

Office location

Optum Medical Care, New York
3680 Hill Blvd, Jefferson Valley, NY 10535
Get directions

Education and background

Practice names

Hospital affiliations

  • Putnam Hospital Center

Board certifications

  • American Board of Internal Medicine

Education and training

  • Medical School - Albert Einstein College of Medicine, Doctor of Medicine
  • Westchester Medical Center (Internship)
  • Westchester Medical Center (Residency)

Awards and publications

  • Castle Connolly Top Doctor
  • New York Magazine Best Doctors Award: 2021-2024
  • Best Doctors in America: 2013, 2015
  • Castle Connolly Top Doctor: 2018-2024
  • Westchester Magazine: 2018-2024

Languages spoken

  • English

Provider's gender

Male

NPI number

1063502870

Patient reviews

All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Trust Banner Shield
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
50 reviews
Most relevant
He is a wonderful doctor and explains everything that I understand so well he is just a nice doctor
He spent good amount of time with me and answered all my questions. He is very polite.
Extremely knowledgeable, caring, listens to what I have to say.
I have been using dr too as my primary dr for over 32 years.
He is a wonderful knowledgeable understanding kind doctor
Been with him for over 45 years and he is just the best.
He is easy to relate
Ive been with Dr Koo for many years and it doesnt get any better. He listens and he is very responsive to all my needs. Fantastic Doc
He is the best Doctor Ive ever had. He genuinely cares and is extremely knowledgeable, thorough and kind. Im very grateful for him.
He listens, always polite and respectful.
Dr. Koo has been my primary care physician for over 15 years . He has always provided the time I need to discuss my health with him
He very knowledgeable and polite
I have been he patient for many years, and have always loved everything about him.He treats his patients in a way I wish every doctor would. He is friendly, listens, and takes his time, always respectful and courteous. He has always been my favorite MD!
Very thorough listens to my concerns
He has been my internist since hes been in practice. Hes a wonderful doctor. He always listens. shares his opinion. he cares about his patients
Frequently asked questions

How soon can I make an appointment with Dr. Jim L. Koo?

Generally, Dr. Jim L. Koo has appointments available on Zocdoc within 1 week. You can see Dr. Koo's earliest availability on Zocdoc and make an appointment online.

Is Dr. Jim L. Koo accepting new patients?

Dr. Jim L. Koo generally accepts new patients on Zocdoc. You can see Dr. Koo's earliest availability on Zocdoc and schedule an appointment online.

Does Dr. Jim L. Koo accept my insurance?

Choose your insurance plan to verify if Dr. Koo is in-network.

Can I make an appointment with Dr. Jim L. Koo online?

Yes, you can make an appointment online with Dr. Koo using Zocdoc. It’s simple, secure, and free.

Which hospital is Dr. Jim L. Koo affiliated with?

Dr. Jim L. Koo is affiliated with Putnam Hospital Center.

What practice does Dr. Jim L. Koo work with?

Where is Dr. Jim L. Koo's office located?

Dr. Jim L. Koo's office is located at 3680 Hill Blvd, Jefferson Valley, NY 10535.

Which board certifications does Dr. Jim L. Koo have?

Dr. Jim L. Koo is certified by American Board of Internal Medicine.

What are common reasons for patients to see Dr. Jim L. Koo?

Dr. Jim L. Koo frequently sees patients for Annual Physical, Arthritis, Illness, Physical Therapy Consultation, and Sleep Problems. You can see other visit reasons for Dr. Jim L. Koo on their profile.

What languages does Dr. Jim L. Koo speak?

Dr. Jim L. Koo speaks English.

Find doctors

    Zocdoc›New York, NY Internists›Dr. Jim L. Koo, MD