Thomas Louwers, M.D.
NPI 1598962136 · Occupational Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Louwers, M.D. is a Occupational Medicine Physician provider in Seattle, WA (NPI 1598962136).
Provider details
- NPI number
- 1598962136
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 010124465 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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)
- Madigan Army Medical Ctr9025 5th Ave.Tacoma, WA 98431-0001Phone: (253) 968-6126
Registry dates
- Enumerated
- 2007-06-28
- Last updated
- 2021-04-28
- Certified
- 2021-04-28
Frequently asked questions
- What is Thomas Louwers's NPI number?
- Thomas Louwers's National Provider Identifier (NPI) is 1598962136, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Louwers's specialty?
- Thomas Louwers is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Louwers located?
- Thomas Louwers's practice location on file with NPPES is 125 16th Ave E, Seattle, WA 98112-5211.
- What is Thomas Louwers's phone number?
- The practice phone number listed in the NPPES registry for Thomas Louwers is (206) 326-3000.
- Does Thomas Louwers accept Medicare?
- Thomas Louwers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Louwers's NPI active?
- Yes — Thomas Louwers's NPI (1598962136) is active in the NPPES registry as of the last update on 2021-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.