KAREN ACKERMAN M.D.
NPI 1164574554
Radiology - Diagnostic Radiology in Tacoma, WA
About Karen Ackerman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN ACKERMAN M.D. (NPI 1164574554) is an individual diagnostic radiology provider in Tacoma, Washington, licensed in Washington (MD00037898) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Karen Ackerman 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 Reassignment
Medicare enrollment records show Karen Ackerman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Renton, WA 98057
- Reassigned Medicare billing, Washington enrollment
- 2,678 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 98405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
TACOMA, WA 98405
TACOMA, WA 98405
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 Karen Ackerman's NPI number?
The NPI number for Karen Ackerman is 1164574554. It was assigned to this individual provider in the NPPES registry on January 17, 2007.
Where is Karen Ackerman located?
Karen Ackerman practices at 209 Martin Luther King Jr Way, Tacoma, WA 98405. The listed phone number is (253) 596-3300.
What is Karen Ackerman's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Karen Ackerman enrolled in Medicare?
Yes. Karen Ackerman 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 organization bills Medicare for Karen Ackerman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Ackerman reassigns Medicare benefits to Kaiser Foundation Health Plan Of Washington (Renton, WA). The 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 Karen Ackerman'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 Karen Ackerman was last updated on March 31, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.
# Karen Ackerman, M.D. · NPI 1164574554
Diagnostic Radiology physician in Tacoma, Washington. Individual provider, active in the CMS NPPES registry since January 17, 2007.
## Identity
- **NPI:** 1164574554 (Entity type: Individual)
- **Enumerated:** January 17, 2007
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** MD00037898 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 209 MARTIN LUTHER KING JR WAY, Tacoma, WA 98405-4265
- **Phone:** (253) 596-3300
## 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:** Kaiser Foundation Health Plan Of Washington (NPI 1124264577, Renton, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers New Jersey Medical School, class of 1991
## Record status
- **NPPES last updated:** March 31, 2021
- **Other identifiers:** Medicaid 8249237 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1164574554) · Data from the CMS NPPES public registry.