STEFANO JOHNSON MD – NPI #1689150401
Radiology

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

STEFANO JOHNSON is a radiologist located in FEDERAL WAY, WA. NPPES has assigned the NPI number 1689150401 to STEFANO JOHNSON on July 15, 2018. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI data, there are 2 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 2085R0202X from the Health Care Provider Taxonomy code set, which is classified as Radiology, specializing in Diagnostic Radiology

The NPI profile was last updated on Jan 19, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for STEFANO JOHNSON below.

NPI Profile for
STEFANO JOHNSON

NPI Number
1689150401
Enumeration Date

(about 8 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
STEFANO JOHNSON
Credentials
MD
Primary location
533 S 336TH ST STE C
FEDERAL WAY, WA 98003-6329
Phone: (253) 661-1700 Fax:
2 Other location(s):
505 Parnassus Ave # M-391
San Francisco, CA 94143-2204
Phone: (415) 476-1000
925 Seneca St.
Mail Sop: H8-GME
Seattle, WA 98101
Phone: (206) 583-6079
Mailing address
PO BOX 26730
FEDERAL WAY, WA 98093-3730
Phone: (253) 661-1700 Fax:
Sole Proprietor
No
Updated
Certification Date
Jan 19, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
2085R0202X
- Radiology / Diagnostic Radiology (Primary)
CA A185070
390200000X
- Student in an Organized Health Care Education/Training Program
WA MDRE.ML.60960928
207R00000X
- Internal Medicine
RI LP04446

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
WARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY - Graduated 2018
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.