John Lengle, LMFT, LSW
NPI 1275547721 · Marriage & Family Therapist · St Charles, IL
John Lengle, LMFT, LSW is a Marriage & Family Therapist provider in St Charles, IL (NPI 1275547721).
Provider details
- NPI number
- 1275547721
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT, LSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 150.003684 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2006-07-28
- Last updated
- 2017-01-25
Frequently asked questions
- What is John Lengle's NPI number?
- John Lengle's National Provider Identifier (NPI) is 1275547721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lengle's specialty?
- John Lengle is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Lengle located?
- John Lengle's practice location on file with NPPES is 1145 Charleston Dr, St Charles, IL 60174-3833.
- What is John Lengle's phone number?
- The practice phone number listed in the NPPES registry for John Lengle is (630) 377-2009.
- Is John Lengle's NPI active?
- Yes — John Lengle's NPI (1275547721) is active in the NPPES registry as of the last update on 2017-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.