What is Erik Knowles's NPI number?

Erik Knowles's National Provider Identifier (NPI) is 1801745435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Erik Knowles's specialty?

Erik Knowles is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).

Where is Erik Knowles located?

Erik Knowles's practice location on file with NPPES is 1382 Blue Oaks Blvd Ste 213, Roseville, CA 95678-7052.

What is Erik Knowles's phone number?

The practice phone number listed in the NPPES registry for Erik Knowles is (877) 412-8031.

Is Erik Knowles's NPI active?

Yes — Erik Knowles's NPI (1801745435) is active in the NPPES registry as of the last update on 2026-01-26.

IndividualActive

Erik Knowles

NPI 1801745435 · Marriage & Family Therapist · Roseville, CA

Erik Knowles is a Marriage & Family Therapist provider in Roseville, CA (NPI 1801745435).

Provider details

NPI number: 1801745435
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000X
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

1382 Blue Oaks Blvd Ste 213

Roseville, CA 95678-7052

Phone: (877) 412-8031

Street-level locationGet directions

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Mailing address