OrganizationActive
Deanna Jo Williamson
NPI 1255504916 · Sleep Disorder Diagnostic Clinic/Center · Johnson City, TN
Provider details
- NPI number
- 1255504916
- Entity type
- Organization
- Primary specialty
- Sleep Disorder Diagnostic Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Jeff Ragan, Manager(336) 345-0678
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Detailed profile(87/100 index)
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
329 Wesley St
Suite 3
Johnson City, TN 37601-1721
Phone: (423) 282-0093
Fax: (423) 282-8533
Street-level locationGet directions
Mailing address
Po Box 1712
Kernersville, NC 27285-1712
Other names (DBA / former)
- Doing business as
- Regional Health Services
Registry dates
- Enumerated
- 2008-04-02
- Last updated
- 2008-04-02
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.