What is Katie Diffay's NPI number?

Katie Diffay's National Provider Identifier (NPI) is 1780379545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Katie Diffay's specialty?

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

Where is Katie Diffay located?

Katie Diffay's practice location on file with NPPES is 3445 W 85th Pl, Chicago, IL 60652-3780.

What is Katie Diffay's phone number?

The practice phone number listed in the NPPES registry for Katie Diffay is (773) 209-8155.

Is Katie Diffay's NPI active?

Yes — Katie Diffay's NPI (1780379545) is active in the NPPES registry as of the last update on 2023-04-07.

IndividualActive

Katie Diffay, LCSW

NPI 1780379545 · Clinical Social Worker · Chicago, IL

Katie Diffay, LCSW is a Clinical Social Worker provider in Chicago, IL (NPI 1780379545).

Provider details

NPI number: 1780379545
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Female
Sole proprietor: Yes
License: 149025213 (IL)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 149025213 (IL)
Behavioral Health & Social Service Providers

Profile Score

Established profile(59/100 index)

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

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
100% 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

3445 W 85th Pl

Chicago, IL 60652-3780

Phone: (773) 209-8155

Street-level locationGet directions

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Mailing address