Physician Profile
Carl J. Mason, M.D.
Unclaimed ProfileAbout Dr. Mason
Carl J. Mason, M.D. practices internal medicine in Seattle, WA. Carl is also listed as specializing in public health & general preventive medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (805) 455-8593
- Email not available
Practice Locations
24 ROY ST SUITE 120
Seattle, WA 98109
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Carl J. Mason's specialty?
Carl J. Mason is an internist in Seattle, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Carl J. Mason?
Carl J. Mason is listed at 24 Roy St Suite 120, Seattle, WA 98109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Carl J. Mason?
The number on file is (805) 455-8593. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Carl J. Mason?
Carl J. Mason's National Provider Identifier is 1184787525. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Carl J. Mason have?
Carl J. Mason has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Carl J. Mason's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Carl J. Mason. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.