Stephen Johnsen, M.S.
NPI 1801338124 · Marriage & Family Therapist · Saint Charles, IL
Stephen Johnsen, M.S. is a Marriage & Family Therapist provider in Saint Charles, IL (NPI 1801338124).
Provider details
- NPI number
- 1801338124
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 166.001093 (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
9 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
- 2016-11-17
- Last updated
- 2016-11-17
Frequently asked questions
- What is Stephen Johnsen's NPI number?
- Stephen Johnsen's National Provider Identifier (NPI) is 1801338124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Johnsen's specialty?
- Stephen Johnsen is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Stephen Johnsen located?
- Stephen Johnsen's practice location on file with NPPES is 3127 Renard Ln, Saint Charles, IL 60175-4653.
- What is Stephen Johnsen's phone number?
- The practice phone number listed in the NPPES registry for Stephen Johnsen is (630) 689-3079.
- Is Stephen Johnsen's NPI active?
- Yes — Stephen Johnsen's NPI (1801338124) is active in the NPPES registry as of the last update on 2016-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.