Thomas Hammerman
NPI 1790948685 · Marriage & Family Therapist · Evanston, IL
Thomas Hammerman is a Marriage & Family Therapist provider in Evanston, IL (NPI 1790948685).
Provider details
- NPI number
- 1790948685
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 166.000813 (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
17 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
- 2008-07-09
- Last updated
- 2011-12-07
Frequently asked questions
- What is Thomas Hammerman's NPI number?
- Thomas Hammerman's National Provider Identifier (NPI) is 1790948685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Hammerman's specialty?
- Thomas Hammerman is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Thomas Hammerman located?
- Thomas Hammerman's practice location on file with NPPES is 820 Davis St, Evanston, IL 60201-4431.
- What is Thomas Hammerman's phone number?
- The practice phone number listed in the NPPES registry for Thomas Hammerman is (847) 424-1924.
- Is Thomas Hammerman's NPI active?
- Yes — Thomas Hammerman's NPI (1790948685) is active in the NPPES registry as of the last update on 2011-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.