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Zander Westendarp, M.D.
NPI 1609990597 · Adult Medicine Physician · Seattle, WA
Zander Westendarp, M.D. is a Adult Medicine Physician provider in Seattle, WA (NPI 1609990597).
Provider details
- NPI number
- 1609990597
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD00036352 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
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
1122 E Pike St # 911
Seattle, WA 98122-3916
Phone: (206) 612-3814
Fax: (603) 688-5824
Street-level locationGet directions
Mailing address
1122 E Pike St # 911
Seattle, WA 98122-3916
Registry dates
- Enumerated
- 2007-03-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Zander Westendarp's NPI number?
- Zander Westendarp's National Provider Identifier (NPI) is 1609990597, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zander Westendarp's specialty?
- Zander Westendarp is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zander Westendarp located?
- Zander Westendarp's practice location on file with NPPES is 1122 E Pike St # 911, Seattle, WA 98122-3916.
- What is Zander Westendarp's phone number?
- The practice phone number listed in the NPPES registry for Zander Westendarp is (206) 612-3814.
- Is Zander Westendarp's NPI active?
- Yes — Zander Westendarp's NPI (1609990597) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.