William Ziolo, LPC
NPI 1689337321 · Professional Counselor · Deerfield, IL
William Ziolo, LPC is a Professional Counselor provider in Deerfield, IL (NPI 1689337321).
Provider details
- NPI number
- 1689337321
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- LPC
- Sex
- Male
- Sole proprietor
- No
- License
- 178.016023 (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
4 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
- 2021-10-19
- Last updated
- 2022-02-09
- Certified
- 2022-02-09
Frequently asked questions
- What is William Ziolo's NPI number?
- William Ziolo's National Provider Identifier (NPI) is 1689337321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ziolo's specialty?
- William Ziolo is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is William Ziolo located?
- William Ziolo's practice location on file with NPPES is 770 Lake Cook Rd Ste 320, Deerfield, IL 60015-4976.
- What is William Ziolo's phone number?
- The practice phone number listed in the NPPES registry for William Ziolo is (847) 600-4124.
- Is William Ziolo's NPI active?
- Yes — William Ziolo's NPI (1689337321) is active in the NPPES registry as of the last update on 2022-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.