Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. ER-JIA MAO DDS, PHD
NPI 1326044058
Dentist - Periodontics in Seattle, WA

Active since June 27, 2005
2111 N NORTHGATE WAY, STE 215, SEATTLE, WA 98133(206) 367-6767(206) 367-4788 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Er-jia Mao Dds, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ER-JIA MAO DDS, PHD (NPI 1326044058) is an individual periodontics provider in Seattle, Washington, licensed in Washington (DE8464) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1326044058
Entity TypeIndividualMale
Primary Taxonomy1223P0300X
Provider Legal NameDR. ER-JIA MAOCredential: DDS, PHD
Location Address2111 N NORTHGATE WAY, STE 215Seattle, WA 98133-9018
Mailing Address2111 N Northgate Way, Ste 215Seattle, WA 98133 · (206) 367-6767 · Fax (206) 367-4788
Fax(206) 367-4788
Sole ProprietorNo
Enumeration DateJune 27, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1326044058 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License Licensed in WA · DE8464
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
2111 N NORTHGATE WAY, Seattle, WA 98133

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Psychiatric/Mental Health)
2111 N NORTHGATE WAY, STE 217
SEATTLE, WA 98133
Home Health
2111 N NORTHGATE WAY, STE 103
SEATTLE, WA 98133
Naturopath
2111 N NORTHGATE WAY
SEATTLE, WA 98133
Dentist (General Practice)
2111 N NORTHGATE WAY, STE 221
SEATTLE, WA 98133
Dentist (Periodontics)
2111 N NORTHGATE WAY
SEATTLE, WA 98133
Mechanotherapist
2111 N NORTHGATE WAY, #221
SEATTLE, WA 98133
Social Worker (Clinical)
2111 N NORTHGATE WAY, SUITE 217
SEATTLE, WA 98133
Internal Medicine
2111 N NORTHGATE WAY, #217
SEATTLE, WA 98133

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Er-jia Mao's NPI number?

The NPI number for Er-jia Mao is 1326044058. It was assigned to this individual provider in the NPPES registry on June 27, 2005.

Where is Er-jia Mao located?

Er-jia Mao practices at 2111 N Northgate Way Ste 215, Seattle, WA 98133. The listed phone number is (206) 367-6767.

What is Er-jia Mao's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

When was this NPI record last updated?

The NPPES record for Er-jia Mao was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.