The Sleep and Wellness Center, PC
NPI 1598931008 · Sleep Disorder Diagnostic Clinic/Center · Crystal Lake, IL
The Sleep and Wellness Center, PC is a Sleep Disorder Diagnostic Clinic/Center organization in Crystal Lake, IL (NPI 1598931008).
Provider details
- NPI number
- 1598931008
- Entity type
- Organization
- Primary specialty
- Sleep Disorder Diagnostic Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Dennis Kellar, President(312) 933-9007
- License
- 036104219 (IL)
Specialties & taxonomies
Ambulatory Health Care Facilities
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-05-05
- Last updated
- 2008-05-05
Frequently asked questions
- What is The Sleep and Wellness Center, PC's NPI number?
- The Sleep and Wellness Center, PC's National Provider Identifier (NPI) is 1598931008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is The Sleep and Wellness Center, PC?
- The Sleep and Wellness Center, PC is classified in the NPPES registry as Sleep Disorder Diagnostic Clinic/Center (Ambulatory Health Care Facilities).
- Where is The Sleep and Wellness Center, PC located?
- The Sleep and Wellness Center, PC's practice location on file with NPPES is 360 Station Dr, Crystal Lake, IL 60014.
- What is The Sleep and Wellness Center, PC's phone number?
- The practice phone number listed in the NPPES registry for The Sleep and Wellness Center, PC is (847) 854-4220.
- Who is the authorized official for The Sleep and Wellness Center, PC?
- The authorized official listed on The Sleep and Wellness Center, PC's NPPES record is Dennis Kellar, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is The Sleep and Wellness Center, PC's NPI active?
- Yes — The Sleep and Wellness Center, PC's NPI (1598931008) is active in the NPPES registry as of the last update on 2008-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.