Dr. Margaret Co, MD

Allergy & AsthmaFemaleAge 62

Allergy & Asthma

Dr. Margaret Co, MD is an Allergy & Asthma Specialist in Emerson, NJ and has over 38 years of experience in the medical field. Dr. Co has extensive experience in Environmental Allergies. She graduated from UNIVERSITY OF THE PHILIPPINES / COLLEGE OF MEDICINE in 1984. She is affiliated with Valley Hospital. Her office accepts new patients and telehealth appointments.

Dr. Margaret Co, MD

Pascack Valley Medical Group

466 Old Hook Rd Ste 1 Emerson, NJ 07630
Accepting new patients
Telehealth services available
Telehealth services available

Accepting new patients

At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Offers Telehealth
    This provider offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ See hospitals
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Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for New Jersey
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Frequently Treated by Dr. Co

Based on treatment records, we have identified the following as areas of care that Dr. Co treats more often than their peers. If you are unsure whether Dr. Co treats other conditions, please contact the office at (201) 261-0821.

Environmental Allergies

Compare with other Environmental Allergies specialists.

Dr. Co is experienced in the area of Environmental Allergies. See the graph below to learn more about her experience.

Based on claims data for 14 conditions and procedures

Treatments
Dr. Co
Similar Providers
Allergic Rhinitis
Pollen Allergy
Hives
Animal Allergies
Normal
Frequency
High
Frequency
Very High
Frequency

Check Dr. Co's experience treating your condition or procedure

Dr. Co's conditions and procedures:

  • Acute Pharyngitis
  • Acute Sinusitis
  • All Types of Food Poisoning
  • Allergic Conjunctivitis
  • Allergic Rhinitis
  • Allergies
  • Allergy Shots
  • Allergy Shots for Insect Stings
  • Allergy Skin Testing
  • Allergy Testing
  • Allergy Treatment
  • Anaphylactic Food Allergies
  • Anaphylactic Shell Fish Allergy
  • Anaphylactic Tree Nut Allergy
  • Anaphylaxis
  • Angioedema
  • Animal Allergies
  • Asthma
  • Asthma in Children
  • Atopic Dermatitis (Eczema)
  • Blood Allergy Testing
  • Bronchitis
  • Bronchoprovocation Test
  • Chronic Sinusitis
  • Common Variable Immune Deficiency (CVID)
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Dermatitis
  • Dermatitis Due to Drugs
  • Dermatitis Due to Food
  • Dermatitis Due to Substances Taken Internally
  • Desensitization
  • Drug Allergy
  • Drug Allergy Testing
  • Drug or Food Challenge
  • Dyshydrotic Eczema
  • Earwax Buildup
  • Eczema and Contact Dermatitis Due to Cosmetics
  • Eczema and Contact Dermatitis Due to Metals
  • Eosinophilia
  • Eosinophilic Esophagitis
  • Food Allergy
  • Hives
  • Hypogammaglobulinemia
  • IgA Deficiency
  • IgM Deficiency
  • Immunodeficiency Syndromes
  • Itchy Skin
  • Latex Allergy
  • Nasopharyngitis
  • Patch Testing
  • Pinkeye (Conjunctivitis)
  • Pollen Allergy
  • Postnasal Drip
  • Radioallergosorbent Test
  • Rash
  • Sinusitis
  • Skin Testing and Screening
  • Toxic Effect of Venom

Insurance Check

Search for your insurance provider

Dr. Co accepts

Accepted insurance can change. Please double-check when making an appointment.

(201) 261-0821

Dr. Co accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Select
Amerihealth
Amerihealth HMO
Amerihealth PPO
Direct POS
Direct Value Network POS
Personal Choice PPO
Value Network HMO
Value Network PPO
Anthem
National (BlueCard Basic) PPO
National (BlueCard) PPO
Blue Cross Blue Shield
Blue Card PPO
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Cigna HMO
Cigna PPO
Open Access
Open Access Plus
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care PPO
Horizon Blue Cross Blue Shield of New Jersey
Direct Access
Horizon Blue Cross Blue Shield HMO
Horizon Blue Cross Blue Shield POS
Horizon Blue Cross Blue Shield PPO
MagnaCare
MagnaCare PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO
Oxford Health Plans
QualCare
QualCare HMO
QualCare PPO
UnitedHealthCare
Choice Plus POS
Navigate HMO
Navigate POS
Options PPO
United Healthcare

Dr. Co's Reviews

Likelihood to recommend Dr. Co

4.9

Based on 52 ratings

5 Star
98%
98%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
2%
2%
What went well
No reviews yet
What could be improved
No reviews yet

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RecentHighestLowestMost Helpful
Reply
Very thorough allergist
Our appointment was kept on time. Her staff was proficient. My first visit to Dr. Margaret Co was very productive. I had suffered an asthma attack resulting in an ER visit a few days earlier. She heard all my symptoms, they were numerous. Prioritized and setup plan of attack. Prescribed the necessary meds to control my asthma to prevent another asthma attack episode. Since I felt my asthma attack was due to allergies. I never had asthma before. We setup a follow up to test for allergies.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Ben – Nov 10, 2022
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Reply
I am Dr. Co's patient for over 30 years. She is very easy to talk to and is happy and willing to answer any questions She is friendly and caring to her patients. I would recommend her to anyone in need of a good allergist. Thank you Dr. Co.
What went well
  • Appointment scheduling
  • Staff friendliness
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Sep 10, 2022
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Reply
Dr. Co is attentive and she listens to you
She is the best
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jacid Soto – Sep 09, 2022
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Reply
All over very good experience.
After 75 years I find out I’m not allergic to penicillin!! Thank you Dr Co!! The test was easy and definitely worth the one hour of my time.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Sep 04, 2022
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Reply
Patient, Kind and Caring
I have known Dr. Co for over 30 years and her patient care has been consistent and patient centered. She is easy to talk to and is happy to answer any questions pertaining to my diagnosis. I would recommend her to anyone in need of a good allergist. Thank you for your commitment Dr. Co.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Sep 01, 2022
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Reply
Patient and Caring Physician
I’ve been going to Dr. Co for thirty years. She has always taken wonderful care of me. She always listens to my concerns and gives me advice and suggestions. I would highly recommend her to anyone looking for a compassionate, knowledgeable Allergist.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Diana F – Aug 30, 2022
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Reply
Great doctor!
I have been seeing Dr. Co for allergy shots for over a year. She is very professional, helpful, and responsive to any issues I am having. I highly recommend her!
What went well
  • Office environment
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dave W – Aug 26, 2022
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Reply
Excellent Doctor!
I have had allergies all my life and have been seeing Dr. Co for over 20 years. She is always professional, concise, friendly and explains things fully. She has helped me with my allergies and my asthma and is always up-to-date on the latest medications. I can honestly say that having Dr. Co treat me for my asthma (as well as my allergies) is the best thing I could have done! My allergies are decreasing and my asthma is well controlled which gives me a better quality of life. I absolutely love Dr. Co and the care that she has given me over the years. I recommend her to anyone suffering from allergies or asthma!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Highly Recommend Dr. Co – Aug 25, 2022
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Reply
Highly Recommend
Today was our last appt. with Dr. Co, who’s seen my teen through allergies and eczema and a worldwide pandemic. Throughout, Dr. Co & her team kept her on track, despite so many obstacles to a course of proactive care. By the time we met Dr. Co, we had been to many doctors for severe eczema & allergies. Not one had helped in any significant way. Dr. Co immediately diagnosed several issues the others missed, getting to the heart of the problem with treatments & sound advice. She is brilliant. I learned more in our first visit than in months of research. I happily recommend her often. Lately, I’ve been overwhelmed with surveys & reviews for the slightest service provided. But when I reflected on what a wonderful gift Dr. Co has been, I was sad to think I’d never taken the time to spread good news on the internet for a change. Dr. Co is a lifesaver. She gave my teen her confidence back, and the tools to stay healthy and on track as she goes off to college. I cannot thank Dr. Co enough.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Kathy C. – Aug 25, 2022
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Reply
Excellent - takes time and cares deeply
Fantastic doctor. Dr. Co actually takes time to understand you, carefully explains your options and finds the best treatment. I have seen many allergists over the course of my life, Dr. Co is the best. She was able to get my very difficult condition under control, she really made a difference in my quality of life.
What went well
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Aug 25, 2022
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Reply
Brilliant and Compassionate
Dr. Co is a thorough and compassionate physician. She gives you all the time needed to tell her what's going on with your health and then takes the time needed to research and explain how she will best treat your ailment. Her care has had the most positive effects on my quality of life. I must also mention that her staff, starting with Melissa, is always friendly, welcoming and accommodating.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Carol G – Aug 25, 2022
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Reply
Outstanding doctor
Dr. Co is an outstanding professional who is committed to her patients. She is thoughtful, kind, and knowledgeable about allergens, triggers, and general health. I would continue to recommend her to anyone needing an allergist.
What went well
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
CML – Aug 24, 2022
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Reply
Saw Dr Co yesterday for the first time yesterday for allergy/asthma symptoms. The visit was most enjoyable. Dr. Co was very thorough, patient and engaging. The session was very relaxed and not rushed. I was able to communicate my issues which she clearly took the time to understand. She reviewed my current treatment and proposed more effective solutions which made sense to me. I would recommend Dr. Co without any reservations.
What went well
  • Appointment scheduling
  • Office environment
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
  • Staff wasn't friendly
Helpful
Ray Merchant – Aug 24, 2022
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Reply
Dr. Co is a wonderful doctor. She takes her time with you, she listens to your concerns, and explains everything thoroughly. She has been so helpful is diagnosing and treating my many allergies. I have, and will continue to, recommend her to anyone looking for an allergist. The office staff is very friendly and helpful as well.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
D. Marino – Aug 24, 2022
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Reply
Awesome
She is amazing and very detailed oriented! Her staff is amazing! They were so friendly and nice too! I highly recommend her to anyone that needs to see a specialist for allergies! She is one of those doctors that really cares about you and spends as much time with you to explain everything you need to know
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Anthony – Aug 23, 2022
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Reply
Dr. Co is Execellent, Med Group Needs to Improve
I have been going to Dr. Co for about 4 years now & every experience I’ve had with her has been pleasant. She is very knowledgeable & takes care of her patient like a mom would. I appreciate that she takes her time to explain things. Every time I’ve had a reaction to the shots, she was quick to react with what needs to be done to treat it. I have never felt like I was in danger when taking my allergy shots. Staff is usually pretty nice overall; Melissa at the desk is personable. Though the nurses that administer the shots always changes & I have seen at least 4 nurses roll through the office during my time there. Each nurse was fine but I personally do not like the inconsistency/constant change of nurse. The phone system is not great. When I need to reschedule, I always dread calling because ANY TIME I try to reach the office, I have to jump through hoops. I understand that you can reschedule on an app, but sometimes something comes up last min & you can’t reach anyone live.
What went well
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
  • Long wait times
Helpful
Pauline – Aug 23, 2022
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Reply
Allergist
Dr. Margaret Co has been treating my allergies for several years. She answers my questions completely and understands how allergies effect my well-being.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Long Time Patient – Aug 23, 2022
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Reply
Excellent
I have been going to Dr Co off and on for many years. She is a true knowledgible professional. On one occasion I went to about 3 Doctors who could not make a diagnosis. This included several visits to Columbia p without any success. Within 15 minutes I was diagnosed by Dr Co. I recommend her highly.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dan henry – Aug 22, 2022
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Reply
Extremely likely. Excellent communicator, caring.
Waiting times are very short. Dr Co listens closely to what information you are providing. Asks questions to ensure she understands. Provides medical attention to you. Is open and honest about the current situation. Dr Co is an excellent communicator.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Tom Corcoran – Aug 22, 2022
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Reply
Dr. Co is a very professional and caring person.
Dr. Co always takes time to explain everything relating to my medications and treatment. I would recommend Dr. Co without hesitation.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
A. Erickson – Aug 22, 2022
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About Me

Biography

Dr. Margaret Co, MD is an Allergy & Asthma Specialist in Emerson, NJ and has over 38 years of experience in the medical field. Dr. Co has extensive experience...Read more

Specialties

  • Allergy & Asthma
  • Allergy & Immunology
  • Pediatric Allergy

Board Certifications

  • Allergy & Immunology
  • Pediatrics

Education

1989
Ny Hospital Cornell
Fellowship Hospital
1985
Schneider Chldns Hosp/LI Jewish Med Ctr
Internship Hospital
1984
UNIVERSITY OF THE PHILIPPINES / COLLEGE OF MEDICINE
Medical School
1980
University of The Philippines System / Institute of Health Science
Undergraduate School
,

Awards

Frequently Asked Questions

Does Dr. Margaret Co, MD offer telehealth services?

Dr. Co has indicated that they offer telehealth. Contact the office to check for eligibility for your needs.

Is Dr. Margaret Co, MD accepting new patients?

Dr. Margaret Co, MD generally accepts new patients on Healthgrades. You can see Dr. Co's profile to make an appointment.

Does Dr. Margaret Co, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Co accepts your insurance.

What are Dr. Margaret Co, MD's top areas of care?

Dr. Co frequently treats Environmental Allergies. See all practice areas where Dr. Co specializes.

Where is Dr. Margaret Co, MD's office located?

Dr. Co's office is located at 466 Old Hook Rd Ste 1, Emerson, NJ 07630. Find other locations and directions on Healthgrades.

How can I make an appointment with Dr. Margaret Co, MD?

Find contact information here to make an appointment.

Locations

Pascack Valley Medical Group

Bergen Gastroenterology PC466 Old Hook Rd Ste 1 Emerson, NJ 07630
1
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 4:00pm
    • Tue: 8:00am - 4:00pm
    • Wed: 10:30am - 6:30pm
    • Thu: 8:00am - 4:00pm
    • Fri: 8:00am - 4:00pm
  • Directions

Bergen Medical Associates

Paramus Office1 W Ridgewood Ave Ste 211 Paramus, NJ 07652
2

Margaret L Co MD

Margaret L Co MD75 N Maple Ave # 100 Ridgewood, NJ 07450
3

Affiliated Hospitals

Dr. Co is affiliated with the following hospital. Select the hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Valley Hospital

Ridgewood, NJ

78% Patients that would definitely recommend, 8% higher than the national average

28 Awards Received

Award Highlight: America's 250 Best Hospitals Award™ (2022)