Quest Research Consulting Inc.
NPI 1649683731 · Professional Counselor · Vernon Hills, IL
Quest Research Consulting Inc. is a Professional Counselor organization in Vernon Hills, IL (NPI 1649683731).
Provider details
- NPI number
- 1649683731
- Entity type
- Organization
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Marylu Halperin, President/Principal(847) 650-5201
- License
- 180009006 (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
12 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
Other names (DBA / former)
- Doing business as
- Dba Marylu A. Halperin
Registry dates
- Enumerated
- 2014-06-05
- Last updated
- 2015-07-21
Frequently asked questions
- What is Quest Research Consulting Inc.'s NPI number?
- Quest Research Consulting Inc.'s National Provider Identifier (NPI) is 1649683731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Quest Research Consulting Inc.?
- Quest Research Consulting Inc. is classified in the NPPES registry as Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Quest Research Consulting Inc. located?
- Quest Research Consulting Inc.'s practice location on file with NPPES is 572 Muskegan Ct, Vernon Hills, IL 60061-3418.
- What is Quest Research Consulting Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Quest Research Consulting Inc. is (847) 650-5201.
- Who is the authorized official for Quest Research Consulting Inc.?
- The authorized official listed on Quest Research Consulting Inc.'s NPPES record is Marylu Halperin, President/Principal. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Quest Research Consulting Inc.'s NPI active?
- Yes — Quest Research Consulting Inc.'s NPI (1649683731) is active in the NPPES registry as of the last update on 2015-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.