Mary Dier - Zimmermann, L.C.P.C.
NPI 1336298306 · Professional Counselor · Bourbonnais, IL
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Dier - Zimmermann, L.C.P.C. is a Professional Counselor provider in Bourbonnais, IL (NPI 1336298306).
Provider details
- NPI number
- 1336298306
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- L.C.P.C.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 180-001433 (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
- 2007-01-09
- Last updated
- 2023-07-25
- Certified
- 2023-07-25
Frequently asked questions
- What is Mary Dier - Zimmermann's NPI number?
- Mary Dier - Zimmermann's National Provider Identifier (NPI) is 1336298306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Dier - Zimmermann's specialty?
- Mary Dier - Zimmermann is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Dier - Zimmermann located?
- Mary Dier - Zimmermann's practice location on file with NPPES is 201 Park Pl Ste 2, Bourbonnais, IL 60914-1883.
- What is Mary Dier - Zimmermann's phone number?
- The practice phone number listed in the NPPES registry for Mary Dier - Zimmermann is (815) 573-1443.
- Does Mary Dier - Zimmermann accept Medicare?
- Mary Dier - Zimmermann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Dier - Zimmermann's NPI active?
- Yes — Mary Dier - Zimmermann's NPI (1336298306) is active in the NPPES registry as of the last update on 2023-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.