1st Class Sleep Diagnostics, Inc
1st Class Sleep Diagnostics, Inc is a healthcare organization registered as Clinical Medical Laboratory in Springfield, VA, holding Type 2 (organization) NPI 1144564352 since 2012. The authorized official on file is Young Yi, Director.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1144564352 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | 1st Class Sleep Diagnostics, Inc |
| Practice address | 6128 BRANDON AVE, SUITE 208, Springfield, VA, 22150 |
| Phone | 7033859222 |
| Fax | 7033732671 |
| Enumeration date | 2012-11-15 |
| Last updated in NPPES | 2012-11-15 |
Authorized official
| Name | Young Yi |
|---|---|
| Title | Director |
| Phone | 7033859222 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 291U00000X | Clinical Medical Laboratory | Primary | 107828 | VA |
Copy-ready billing details
Provider: 1st Class Sleep Diagnostics, Inc NPI: 1144564352 Taxonomy: 291U00000X (Clinical Medical Laboratory) Address: 6128 BRANDON AVE, SUITE 208, Springfield, VA, 22150
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1407819147 | Elizabeth Lawhon | Individual | Family Nurse Practitioner | Springfield, VA |
| 1205135183 | Mount Vernon Internal Medicine | Organization | Diagnostic Radiology Physician | Springfield, VA |
| 1568138790 | Patient Care Anesthesia Pllc | Organization | Anesthesiology Physician | Springfield, VA |
Verify this record
Cross-check NPI 1144564352 against the authoritative CMS record: view 1st Class Sleep Diagnostics, Inc on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What is a Type 2 NPI?
What type of organization is 1st Class Sleep Diagnostics, Inc?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-11-15.