What is Tanja Kolthof's NPI number?

Tanja Kolthof's National Provider Identifier (NPI) is 1295608727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Tanja Kolthof's specialty?

Tanja Kolthof is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Tanja Kolthof located?

Tanja Kolthof's practice location on file with NPPES is 23701 Birtcher Dr, Lake Forest, CA 92630-1772.

What is Tanja Kolthof's phone number?

The practice phone number listed in the NPPES registry for Tanja Kolthof is (855) 581-0100.

Is Tanja Kolthof's NPI active?

Yes — Tanja Kolthof's NPI (1295608727) is active in the NPPES registry as of the last update on 2025-09-29.

IndividualActive

Tanja Kolthof

NPI 1295608727 · Behavior Technician · Lake Forest, CA

Tanja Kolthof is a Behavior Technician provider in Lake Forest, CA (NPI 1295608727).

Provider details

NPI number: 1295608727
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
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

23701 Birtcher Dr

Lake Forest, CA 92630-1772

Phone: (855) 581-0100

Street-level locationGet directions

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Mailing address