Mary Chang
NPI 1659470516 · Physician Assistant · Seattle, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Chang is a Physician Assistant provider in Seattle, WA (NPI 1659470516).
Provider details
- NPI number
- 1659470516
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 0104555718 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2016-10-07
Frequently asked questions
- What is Mary Chang's NPI number?
- Mary Chang's National Provider Identifier (NPI) is 1659470516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Chang's specialty?
- Mary Chang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Chang located?
- Mary Chang's practice location on file with NPPES is 125 16th Ave E, Seattle, WA 98112-5211.
- What is Mary Chang's phone number?
- The practice phone number listed in the NPPES registry for Mary Chang is (206) 326-3000.
- Does Mary Chang accept Medicare?
- Mary Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Chang's NPI active?
- Yes — Mary Chang's NPI (1659470516) is active in the NPPES registry as of the last update on 2016-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.