Michelle P. Sierzega, Ltd.
NPI 1679327001 · Clinical Psychologist · Downers Grove, IL
Michelle P. Sierzega, Ltd. is a Clinical Psychologist organization in Downers Grove, IL (NPI 1679327001).
Provider details
- NPI number
- 1679327001
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Michelle Sierzega, President(630) 272-1837
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
2 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
- 2024-04-12
- Last updated
- 2024-04-12
- Certified
- 2024-04-12
Frequently asked questions
- What is Michelle P. Sierzega, Ltd.'s NPI number?
- Michelle P. Sierzega, Ltd.'s National Provider Identifier (NPI) is 1679327001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Michelle P. Sierzega, Ltd.?
- Michelle P. Sierzega, Ltd. is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Michelle P. Sierzega, Ltd. located?
- Michelle P. Sierzega, Ltd.'s practice location on file with NPPES is 4910 Main St, Downers Grove, IL 60515-3611.
- What is Michelle P. Sierzega, Ltd.'s phone number?
- The practice phone number listed in the NPPES registry for Michelle P. Sierzega, Ltd. is (708) 320-1260.
- Who is the authorized official for Michelle P. Sierzega, Ltd.?
- The authorized official listed on Michelle P. Sierzega, Ltd.'s NPPES record is Michelle Sierzega, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Michelle P. Sierzega, Ltd.'s NPI active?
- Yes — Michelle P. Sierzega, Ltd.'s NPI (1679327001) is active in the NPPES registry as of the last update on 2024-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.