Physician Profile
Unclaimed ProfileAbout DIXON
Walker Bryan Dixon, M.D. is a healthcare provider in Portland, OR specializing in internal medicine. Walker is also listed as specializing in psychiatry. According to Medicare claims data, Walker cared for 27 Medicare patients across 48 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (503) 449-5518
- Email not available
Practice Locations
1815 SW MARLOW AVE STE 112
Portland, OR 97225
Procedures Most Often Billed to Medicare
48 services · 27 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
48 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
Other internists in Portland 8
Same specialty, same city.
Common questions
What kind of doctor is Dr. Dixon?
Dr. Dixon is an internist in Portland, OR. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
What is Dr. Dixon's address?
Dr. Dixon is listed at 1815 SW MARLOW AVE STE 112, Portland, OR 97225. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Dixon?
The number on file is (503) 449-5518. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Dixon's NPI number?
Dr. Dixon's National Provider Identifier is 1043365364. 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 long has Dr. Dixon been practicing?
Dr. Dixon has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Dr. Dixon perform?
According to Medicare billing data, Dr. Dixon the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Dixon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dixon. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.