Dr. Johan K. Ahn, MD
Radiology (Diagnostic Radiology Physician)
1304 Fawcett Ave Ste 100
Tacoma, WA 98402
Who else practices at this address →
Pierce County includes primary care (20% of residents) and dental (11% of residents) and mental health (11% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- New York Medical College (1995)
- Years since graduation
- 31
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 2,074
Licensed in Washington since 2003, according to the Washington State Department of Health. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1995Medical school: New York Medical College
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Diagnostic Radiology Physician primary
CA license A84698 (first issued 2022; current) · HI license MD-9933 · IL license 036180646 (first issued 2026; active) · OR license MD151077 · WA license MD00042505 (first issued 2003; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- The Queens Medical Center Honolulu, HI
Medical groups
- Queens University Medical Group (614 clinicians)
- Beverly Radiology Medical Group III (328 clinicians)
- Queens North Hawaii Community Hospital (108 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 2,074
- Services billed
- 2,832
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| X-ray of chest, 1 view | 665 | 571 |
| X-ray of chest, 2 views | 106 | 104 |
| Ct scan head or brain without contrast | 65 | 62 |
| X-ray of abdomen, 1 view | 60 | 48 |
| Ct scan of abdomen and pelvis without contrast | 46 | 45 |
| X-ray of hip, 2-3 views | 45 | 40 |
| Ct scan of chest without contrast | 44 | 44 |
| X-ray of shoulder, minimum of 2 views | 43 | 37 |
| X-ray of knee, 1-2 views | 40 | 32 |
| X-ray of pelvis, 1-2 views | 38 | 38 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.