What is Yi Sun's NPI number?

Yi Sun's National Provider Identifier (NPI) is 1780511600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Yi Sun's specialty?

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

Where is Yi Sun located?

Yi Sun's practice location on file with NPPES is 456 W Frontage Rd Ste 224, Northfield, IL 60093-3035.

What is Yi Sun's phone number?

The practice phone number listed in the NPPES registry for Yi Sun is (312) 978-1919.

Is Yi Sun's NPI active?

Yes — Yi Sun's NPI (1780511600) is active in the NPPES registry as of the last update on 2026-05-05.

IndividualActive

Yi Sun, M.A., LPC, ATR-P

NPI 1780511600 · Mental Health Counselor · Northfield, IL

Yi Sun, M.A., LPC, ATR-P is a Mental Health Counselor provider in Northfield, IL (NPI 1780511600).

Provider details

NPI number: 1780511600
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: M.A., LPC, ATR-P
Sex: Female
Sole proprietor: No
License: 178.023157 (IL)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense 178.023157 (IL)
Behavioral Health & Social Service Providers

Profile Score

Established profile(53/100 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
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

456 W Frontage Rd Ste 224

Northfield, IL 60093-3035

Phone: (312) 978-1919

Street-level locationGet directions

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Mailing address