What is Ava Hammer's NPI number?

Ava Hammer's National Provider Identifier (NPI) is 1639000136, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ava Hammer's specialty?

Ava Hammer is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).

Where is Ava Hammer located?

Ava Hammer's practice location on file with NPPES is 411 S Wells St Ste 2w, Chicago, IL 60607-3927.

What is Ava Hammer's phone number?

The practice phone number listed in the NPPES registry for Ava Hammer is (630) 708-6003.

Is Ava Hammer's NPI active?

Yes — Ava Hammer's NPI (1639000136) is active in the NPPES registry as of the last update on 2026-05-26.

IndividualActive

Ava Hammer, LPC-INTERN

NPI 1639000136 · Professional Counselor · Chicago, IL

Ava Hammer, LPC-INTERN is a Professional Counselor provider in Chicago, IL (NPI 1639000136).

Provider details

NPI number: 1639000136
Entity type: Individual
Primary specialty: Professional CounselorBehavioral Health & Social Service Providers
Credential: LPC-INTERN
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Professional CounselorPrimary101YP2500X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(46/100 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

411 S Wells St Ste 2w

Chicago, IL 60607-3927

Phone: (630) 708-6003

Street-level locationGet directions

More IL providers

Mailing address