ADAM IWANSKI M.D.
NPI 1548678527
Internal Medicine in Seattle, WA
About Adam Iwanski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADAM IWANSKI M.D. (NPI 1548678527) is an individual internal medicine provider in Seattle, Washington, licensed in Washington (MD60753238) and active in the NPI registry since July 2014. He is enrolled in Medicare PECOS, maintains a secondary practice location in Richland, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Adam Iwanski M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Adam Iwanski reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 911 clinicians in this Medicare group
Seattle, WA 98109
- Reassigned Medicare billing, Washington enrollment
- 915 clinicians in this Medicare group
Mill Creek, WA 98012
- Reassigned Medicare billing, Washington enrollment
- 705 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 clinicians in this Medicare group
Edna Bay, AK 99901
- Reassigned Medicare billing, Texas enrollment
- 640 clinicians in this Medicare group
Anchorage, AK 99508
- Reassigned Medicare billing, Alaska enrollment
- 56 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98122 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98122
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Adam Iwanski's NPI number?
The NPI number for Adam Iwanski is 1548678527. It was assigned to this individual provider in the NPPES registry on July 23, 2014.
Where is Adam Iwanski located?
Adam Iwanski practices at 1145 Broadway, Seattle, WA 98122. The listed phone number is (206) 329-1760.
What is Adam Iwanski's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Adam Iwanski enrolled in Medicare?
Yes. Adam Iwanski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Adam Iwanski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Adam Iwanski reassigns Medicare benefits to 6 organizations: The Polyclinic PLLC (Seattle, WA), South Sound Inpatient Physicians PLLC (Seattle, WA), Providence Health & Services- Washington (Mill Creek, WA), Optum Care Washington PLLC (Everett, WA), Southeast Alaska Regional Health Consortium (Edna Bay, AK) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Adam Iwanski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Adam Iwanski was last updated on April 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Adam Iwanski, M.D. · NPI 1548678527
Internal Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since July 23, 2014.
## Identity
- **NPI:** 1548678527 (Entity type: Individual)
- **Enumerated:** July 23, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD60753238 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1145 BROADWAY, Seattle, WA 98122-4201
- **Phone:** (206) 329-1760
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): The Polyclinic PLLC (NPI 1174594634, Seattle, WA); South Sound Inpatient Physicians PLLC (NPI 1699917369, Seattle, WA); Providence Health & Services- Washington (NPI 1790014504, Mill Creek, WA); Optum Care Washington PLLC (NPI 1831186766, Everett, WA); Southeast Alaska Regional Health Consortium (NPI 1518403906, Edna Bay, AK); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** April 18, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1548678527) · Data from the CMS NPPES public registry.