Leslie Frondorf
NPI 1699207811 · Mental Health Counselor · Downers Grove, IL
Leslie Frondorf is a Mental Health Counselor provider in Downers Grove, IL (NPI 1699207811).
Provider details
- NPI number
- 1699207811
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 178010392 (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
- 2017-03-28
- Last updated
- 2023-10-12
- Certified
- 2023-10-12
Frequently asked questions
- What is Leslie Frondorf's NPI number?
- Leslie Frondorf's National Provider Identifier (NPI) is 1699207811, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Frondorf's specialty?
- Leslie Frondorf is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Leslie Frondorf located?
- Leslie Frondorf's practice location on file with NPPES is 1337 Maple Ave, Downers Grove, IL 60515-4829.
- What is Leslie Frondorf's phone number?
- The practice phone number listed in the NPPES registry for Leslie Frondorf is (610) 888-3595.
- Is Leslie Frondorf's NPI active?
- Yes — Leslie Frondorf's NPI (1699207811) is active in the NPPES registry as of the last update on 2023-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.