OrganizationActive
1st Class Sleep Diagnostics, Inc
NPI 1144564352 · Clinical Medical Laboratory · Springfield, VA
1st Class Sleep Diagnostics, Inc is a Clinical Medical Laboratory organization in Springfield, VA (NPI 1144564352).
Provider details
- NPI number
- 1144564352
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Young Yi, Director(703) 385-9222
- License
- 107828 (VA)
Specialties & taxonomies
Laboratories
Profile Score
Detailed profile(79/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
6128 Brandon Ave
Suite 208
Springfield, VA 22150-2640
Phone: (703) 385-9222
Fax: (703) 373-2671
Street-level locationGet directions
Mailing address
14631 Lee Hwy
Centreville, VA 20121-5824
Registry dates
- Enumerated
- 2012-11-15
- Last updated
- 2012-11-15
Frequently asked questions
- What is 1st Class Sleep Diagnostics, Inc's NPI number?
- 1st Class Sleep Diagnostics, Inc's National Provider Identifier (NPI) is 1144564352, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is 1st Class Sleep Diagnostics, Inc?
- 1st Class Sleep Diagnostics, Inc is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is 1st Class Sleep Diagnostics, Inc located?
- 1st Class Sleep Diagnostics, Inc's practice location on file with NPPES is 6128 Brandon Ave, Springfield, VA 22150-2640.
- What is 1st Class Sleep Diagnostics, Inc's phone number?
- The practice phone number listed in the NPPES registry for 1st Class Sleep Diagnostics, Inc is (703) 385-9222.
- Who is the authorized official for 1st Class Sleep Diagnostics, Inc?
- The authorized official listed on 1st Class Sleep Diagnostics, Inc's NPPES record is Young Yi, Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is 1st Class Sleep Diagnostics, Inc's NPI active?
- Yes — 1st Class Sleep Diagnostics, Inc's NPI (1144564352) is active in the NPPES registry as of the last update on 2012-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.