Diana Semmelhack, PSY.D.
NPI 1316033392 · Clinical Psychologist · Evanston, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Semmelhack, PSY.D. is a Clinical Psychologist provider in Evanston, IL (NPI 1316033392).
Provider details
- NPI number
- 1316033392
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 071-006302 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2025-04-28
- Certified
- 2025-04-28
Frequently asked questions
- What is Diana Semmelhack's NPI number?
- Diana Semmelhack's National Provider Identifier (NPI) is 1316033392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Semmelhack's specialty?
- Diana Semmelhack is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Diana Semmelhack located?
- Diana Semmelhack's practice location on file with NPPES is 1919 Lincoln St, Evanston, IL 60201-2230.
- What is Diana Semmelhack's phone number?
- The practice phone number listed in the NPPES registry for Diana Semmelhack is (847) 491-0165.
- Does Diana Semmelhack accept Medicare?
- Diana Semmelhack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Semmelhack's NPI active?
- Yes — Diana Semmelhack's NPI (1316033392) is active in the NPPES registry as of the last update on 2025-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.