background
background
Dr. Mark Sugar, MD

Dr. Mark Sugar, MD

Allergy & Immunology*
55+ years of experience

Dr. Mark Sugar, MD is an allergist-immunologist in Mission Viejo, CA and has over 55 years of experience in the medical field. Dr. Sugar has extensive experience in Environmental Allergies. He graduated from University of Maryland at Baltimore in 1969. He is affiliated with medical facilities Providence Mission Hospital Mission Viejo and Hoag Hospital Newport Beach. He is accepting new patients.

2.1 Star Rating
Based on 7 reviews 2.1 Star Rating (7 reviews)

Allergy & Asthma Associates-Mission Viejo

27800 Medical Center Rd Ste 244 Mission Viejo, CA 92691

Experience Check

Search for experience in a specific area

Dr. Sugar's Reviews

Likelihood to recommend Dr. Sugar

2.1

7 ratings, 4 with a written review
5 Star
29%
29%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
71%
71%

Your trust is our top concern. Learn more.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
Helpful
Frustrated Parent in Orange County, CA – Aug 06, 2024
×Post a ResponseAre you Dr. Mark Sugar, MD?
What went well
No results
What could be improved
  • Didn't trust the provider's decisions
1 person found this helpful
Helpful
Concerned Mom – Nov 05, 2022
×Post a ResponseAre you Dr. Mark Sugar, MD?
What went well
  • Appointment scheduling
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
2 people found this helpful
Helpful
Jul 01, 2022
×Post a ResponseAre you Dr. Mark Sugar, MD?
What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
5 people found this helpful
Helpful
CA – Apr 23, 2017
×Post a ResponseAre you Dr. Mark Sugar, MD?

Leave a review

How was your experience with Dr. Sugar?

About Me

biography

Dr. Mark Sugar, MD is an allergist-immunologist in Mission Viejo, CA and has over 55 years of experience in the medical field. Dr. Sugar has extensive experience in Environmental Allergies. He graduated from University of Maryland at Baltimore...read more
  • Allergy & Immunology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of Maryland At Baltimore

    Medical School, 1969
American Board of Medical Specialties®
American Board of Allergy & Immunology®
Allergy & Immunology
American Board of Pediatrics®
Pediatrics
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Insurance Check

Search for your insurance carrier and choose your plan type

Locations

Allergy & Asthma Associates-Mission Viejo

Allergy & Asthma Associates-Mission Viejo27800 Medical Center Rd Ste 244 Mission Viejo, CA 92691
1

Affiliated Hospitals

  • Hoag Hospital Newport Beach

    1 Hoag Dr
    Newport Beach, CA 92663
    Recipient of 8
    hospital awards

    Outstanding Patient Experience Award™ (2024, 2023, 2022)

    Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    82%
    Patients would recommend the hospital to friends and family

    17% higher than the national average

    View all patient feedback
  • Providence Mission Hospital Mission Viejo

    27700 Medical Center Rd
    Mission Viejo, CA 92691
    Recipient of 5
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    84%
    Patients said they were given information about recovering at home
    76%
    Patients said that nurses always listened to them and explained things well

    1% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality