Dr. Corey Maas, MD

Ear, Nose, and Throat  |  
Male  |  
Age 57
Insurances AcceptedSave
Dr. Corey Maas, MD
Dr. Corey Maas, MD is an ear, nose, and throat doctor who practices in San Francisco, CA. He is 57 years old and has been practicing for 31 years. Dr. Maas is affiliated with California Pacific Medical Center - California Campus and Tahoe Forest Hospital.

2400 Clay St

San Francisco, CA 94115

Contact Information
Dr. Corey Maas, MD

Dr. Corey Maas, MD

Accepted insurance

  • Aetna
  • Blue Cross Blue Shield

*Please verify this information when scheduling an appointment.

Learn about Dr. Maas

Dr. Maas' Experience

Dr. Maas' experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Ear, Nose, and Throat
  • Board certified in Otolaryngology
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Ear, Nose, and Throat

Board Certifications

  • Otolaryngology
    Accredited by: American Board of Otolaryngology*

Conditions Treated

  • Cancer

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University Of Florida
    Medical School | Graduated 1986
  • Saint Louis University Hospital
    Internship Hospital | Completed
  • Saint Louis University Hospital
    Residency Hospital | Completed
  • Ucsf Medical Center
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Maas has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Maas does not have any memberships or affiliations listed. If you are Dr. Maas and would like to add memberships or affiliations, please update your profile.

Dr. Maas' Reviews

Likelihood of recommending Dr. Maas to family and friends
based on 7 total reviews (4 with comments)
Dr. Maas' Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (4)
Fairfax, CA |
Very knowledgeable
in San Francisco, CA |
Dr. Maas is easily the best surgeon in SF. Easily. I've had two procedures plus IPL, and he has changed my life for the better. Way better in many ways. I've seen some negative reviews on him, and I must admonish you to NOT believe them . I think they were written by imposters. The negativity they talk about is just not possible or real. Go visit his office yourself for a consult. You will see first hand the professionalism and trust in that office. I've been a patient for ten years.
in san francisco |
Dr. Maas was able to show me what my post surgery outcome would look like via a computer program in his office. This really helped to decide on the size and shape. Other doctors I consulted with did not have this technology.
in Tahoe City, CA |
Dr. Maas exceeded my expectations on every level. My lower face lift and upper eye lift have a completely natural appearance. The compliments on my appearance following my procedures - without anyone knowing I had surgery - were innumerable. I was treated with great sensitivity and respect from my first visit through my last post surgical appointment. I vetted Dr. Maas thoroughly and my research work paid off! I cannot recommend Dr. Maas highly enough!
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See our Otolaryngology (Ear, Nose & Throat) Specialist at Saint Francis Memorial Hospital

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Now Accepting New Patients
Dr. Maas accepts 2 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • Blue Cross Blue Shield
    Blue Card PPO

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Maas has admitting privileges

California Pacific Medical Center - California Campus
3700 California St
San Francisco, CA 94118
View Hospital Profile
Tahoe Forest Hospital
10121 Pine Ave
Truckee, CA 96161
View Hospital Profile