What is Justin Mcmahan's NPI number?

Justin Mcmahan's National Provider Identifier (NPI) is 1821957754, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Justin Mcmahan's specialty?

Justin Mcmahan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Justin Mcmahan located?

Justin Mcmahan's practice location on file with NPPES is 5331 S Macadam Ave Ste 287, Portland, OR 97239-3849.

What is Justin Mcmahan's phone number?

The practice phone number listed in the NPPES registry for Justin Mcmahan is (503) 635-3416.

Is Justin Mcmahan's NPI active?

Yes — Justin Mcmahan's NPI (1821957754) is active in the NPPES registry as of the last update on 2026-01-16.

IndividualActive

Justin Mcmahan

NPI 1821957754 · Mental Health Counselor · Portland, OR

Justin Mcmahan is a Mental Health Counselor provider in Portland, OR (NPI 1821957754).

Provider details

NPI number: 1821957754
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

5331 S Macadam Ave Ste 287

Portland, OR 97239-3849

Phone: (503) 635-3416

Approximate (ZIP-level) locationGet directions

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Mailing address