What is Katelyn Sinn's NPI number?

Katelyn Sinn's National Provider Identifier (NPI) is 1316464449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Katelyn Sinn's specialty?

Katelyn Sinn is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Katelyn Sinn located?

Katelyn Sinn's practice location on file with NPPES is Po Box 1202, Rancho Cucamonga, CA 91729-1202.

What is Katelyn Sinn's phone number?

The practice phone number listed in the NPPES registry for Katelyn Sinn is (909) 609-5817.

Is Katelyn Sinn's NPI active?

Yes — Katelyn Sinn's NPI (1316464449) is active in the NPPES registry as of the last update on 2026-06-02.

IndividualActive

Katelyn Sinn, LCSW109685

NPI 1316464449 · Clinical Social Worker · Rancho Cucamonga, CA

Katelyn Sinn, LCSW109685 is a Clinical Social Worker provider in Rancho Cucamonga, CA (NPI 1316464449).

Provider details

NPI number: 1316464449
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW109685
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700X
Behavioral Health & Social Service Providers

Profile Score

Established profile(63/100 index)

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

Registry tenure38% of score
8 yrs in NPPES 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

Po Box 1202

Rancho Cucamonga, CA 91729-1202

Phone: (909) 609-5817

Approximate (ZIP-level) locationGet directions

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Mailing address