IndividualActive
Louis Hemmerich, PH.D.
NPI 1639389968 · Clinical Psychologist · Chicago, IL
Louis Hemmerich, PH.D. is a Clinical Psychologist provider in Chicago, IL (NPI 1639389968).
Provider details
- NPI number
- 1639389968
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 72-2073 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
111 N Wabash Ave
Suite 1408
Chicago, IL 60602-1903
Phone: (312) 443-1400
Fax: (312) 443-1307
Street-level locationGet directions
Mailing address
111 N Wabash Ave
Chicago, IL 60602-1903
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is Louis Hemmerich's NPI number?
- Louis Hemmerich's National Provider Identifier (NPI) is 1639389968, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Hemmerich's specialty?
- Louis Hemmerich is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Louis Hemmerich located?
- Louis Hemmerich's practice location on file with NPPES is 111 N Wabash Ave, Chicago, IL 60602-1903.
- What is Louis Hemmerich's phone number?
- The practice phone number listed in the NPPES registry for Louis Hemmerich is (312) 443-1400.
- Is Louis Hemmerich's NPI active?
- Yes — Louis Hemmerich's NPI (1639389968) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.