Tammy Muller, PA-C
NPI 1891879342 · Physician Assistant · Seattle, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Muller, PA-C is a Physician Assistant provider in Seattle, WA (NPI 1891879342).
Provider details
- NPI number
- 1891879342
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA10003769 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
2 documented practice locations
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
Additional practice locations (1)
- 1717 13th St Ste 300Everett, WA 98201-1621Phone: (425) 297-5500
Registry dates
- Enumerated
- 2006-10-24
- Last updated
- 2023-08-07
- Certified
- 2023-08-07
Frequently asked questions
- What is Tammy Muller's NPI number?
- Tammy Muller's National Provider Identifier (NPI) is 1891879342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Muller's specialty?
- Tammy Muller is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Muller located?
- Tammy Muller's practice location on file with NPPES is 825 Eastlake Ave E, Seattle, WA 98109-4405.
- What is Tammy Muller's phone number?
- The practice phone number listed in the NPPES registry for Tammy Muller is (206) 520-5000.
- Does Tammy Muller accept Medicare?
- Tammy Muller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Muller's NPI active?
- Yes — Tammy Muller's NPI (1891879342) is active in the NPPES registry as of the last update on 2023-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.