Dr. Er-Jia Mao, DDS

Periodontics •  Male • Age 61
Dr. Mao
Accepting new patients

Periodontics Northwest

2111 N Northgate Way Ste 215 Seattle, WA 98133

Make an Appointment

(206) 367-6767

Dr. Er-Jia Mao, DDS is a Periodontics Practitioner in Seattle, WA. He is accepting new patients and has not yet indicated that he accepts telehealth appointments. Be sure to call ahead with Dr. Mao to book an appointment.

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At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Low Wait Times
    Patients are usually seen in 10 minutes or less.
  • Trustworthy
    Patients said this doctor is trustworthy. See reviews

Insurance Check

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Dr. Mao accepts

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

(206) 367-6767

Dr. Mao accepts the following insurance:

Delta Dental
Delta Dental PPO
Delta Dental Premier

Background Check

Healthgrades does not collect malpractice claims information for Washington
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check if Dr. Mao treats your condition or procedure

Dr. Mao's conditions and procedures:

  • Broken Tooth
  • Cavity
  • Chipped Tooth
  • Cosmetic Procedure
  • Crown Lengthening
  • Dental Disorders
  • Dental Implant
  • Gingivitis
  • Gum Disease
  • Gum Surgery
  • Misaligned Teeth
  • Osseous Surgery
  • Periodontitis
  • Root Planing
  • Scaling and Root Planing
  • Sinus Augmentation
  • Tempormandibular Joint Pain
  • TMJ
  • Tooth Abrasion
  • Tooth Abscess
  • Tooth Attrition
  • Tooth Damage
  • Tooth Decay
  • Tooth Demineralization

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Dr. Mao's Reviews

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What People Say About Dr. Er-Jia Mao, DDS
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Dr. Mao is a top-rated periodontist. He is highly knowledgeable and extremely thorough. All his staff members are very helpful as well. I would highly recommend Dr. Mao to anyone who needs periodontal treatments, he is truly the best! Ronnie
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WA – Sep 10, 2018
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About Me


Dr. Er-Jia Mao, DDS, PHD is a Dentist - Periodontics (Periodontist) practicing in Seattle, WA, started practicing 1983.

PROFESSIONAL ASSOCIATIONS American Academy of Periodontology (AAP) Washington State Society of Periodontists American...

Practice Areas

  • Periodontics


CME - Oral and Maxillofacial Surgery - West China University of Medical Sciences, China


  • Chinese
  • English

Frequently Asked Questions

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Periodontics Northwest

Periodontics Northwest2111 N Northgate Way Ste 215 Seattle, WA 98133
  • Call
  • Fax
  • Hours
    • Mon: closed
    • Tue: 7:30am - 4:30pm
    • Wed: 7:30am - 4:30pm
    • Thu: 7:30am - 4:30pm
    • Fri: 7:30am - 2:30pm
    • Sat: closed
    • Sun: closed
  • Directions