Adam Iwanski, M.D.
NPI 1548678527 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Iwanski, M.D. is a Internal Medicine Physician provider in Seattle, WA (NPI 1548678527).
Provider details
- NPI number
- 1548678527
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD60753238 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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)
- 888 Swift BlvdRichland, WA 99352-3514Phone: (509) 946-4611
Registry dates
- Enumerated
- 2014-07-23
- Last updated
- 2025-04-18
- Certified
- 2025-04-18
Frequently asked questions
- What is Adam Iwanski's NPI number?
- Adam Iwanski's National Provider Identifier (NPI) is 1548678527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Iwanski's specialty?
- Adam Iwanski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Adam Iwanski located?
- Adam Iwanski's practice location on file with NPPES is 1145 Broadway, Seattle, WA 98122-4201.
- What is Adam Iwanski's phone number?
- The practice phone number listed in the NPPES registry for Adam Iwanski is (206) 329-1760.
- Does Adam Iwanski accept Medicare?
- Adam Iwanski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Iwanski's NPI active?
- Yes — Adam Iwanski's NPI (1548678527) is active in the NPPES registry as of the last update on 2025-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.