NPPES file of Aug 9, 2026

Karen Ackerman, M.D.

Diagnostic Radiology Physician · Tacoma, WA

Karen Ackerman, M.D. is a diagnostic radiology physician with a practice address in Tacoma, Washington, and NPI 1164574554, issued on Jan 17, 2007. Check the license (Washington MD00037898, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164574554
Name
Karen Ackerman
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
MD00037898 WA
Self-reported in NPPES; status is on the state search
Practice location
209 Martin Luther King JR Way, Tacoma, WA 98405
Phone
(253) 596-3300
Enumerated
Jan 17, 2007
Record last updated
Mar 31, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
8249237 WA
Medicare enrollment
Enrolled (PECOS I20080212000588); accepts Medicare assignment
Medical or professional school
Rutgers New Jersey Medical School, 1991
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 209 Martin Luther King JR Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alireza Abdolmohammadi, MDMedical Oncology Physician1871816207
  2. Natasha Alciso, PA-CPhysician Assistant1982299400
  3. Fahad Alroumi, M.D.Critical Care Medicine (Internal Medicine) Physician1295010676
  4. Michael Alston, MDPediatrics Physician1023403193
  5. Charles Anderson, M.D.Pulmonary Disease Physician1225004120
  6. Mark Arrant, P.A.Surgical Physician Assistant1902960909

Verify Karen Ackerman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00037898
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF WashingtonTacoma, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Karen Ackerman among 1,041 diagnostic radiology physician records in Washington

Karen Ackerman, M.D. is one of 1,041 diagnostic radiology physician records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.

  • NPI issued2007 · 51% of these records are older, 38% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1991 · median 2004 among the 682 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Washington

There are 1,041 diagnostic radiology physician records in Washington.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Matthew Bloom, M.D.Tacoma, WA 984051215053624
  2. Elizabeth Carter, M.D.Tacoma, WA 984051518021559
  3. James Cefalu, M.D.Tacoma, WA 984051427114271
  4. Stephanie Flagg, M.D.Tacoma, WA 984051598812265
  5. Ronald Fletcher, M.D.Tacoma, WA 984051295882868
  6. Basil Grieco, M.D.Tacoma, WA 984051376691758
  7. Robert Gutierrez, M.D.Tacoma, WA 984051447297163
  8. Amber Hsiao, M.D.Tacoma, WA 984051205985447

Common questions

What is Karen Ackerman, M.D.'s NPI number?

Karen Ackerman, M.D.'s National Provider Identifier (NPI) is 1164574554, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Karen Ackerman, M.D. located?

The NPPES record lists a practice address at 209 Martin Luther King JR Way, Tacoma, WA, 98405. Phone: (253) 596-3300. Providers update this record themselves, so call before visiting.

How can I verify Karen Ackerman, M.D.'s license?

NPPES lists Washington license number MD00037898, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.