John C. Langley MD LLC
John C. Langley MD LLC is a healthcare organization registered as Clinic/Center in Key West, FL, holding Type 2 (organization) NPI 1659822922 since 2016. The authorized official on file is John Langley, Sole Shareholder.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659822922 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | John C. Langley MD LLC |
| Practice address | 3412 DUCK AVE, Key West, FL, 33040 |
| Phone | 3052941024 |
| Enumeration date | 2016-10-20 |
| Last updated in NPPES | 2016-10-20 |
Authorized official
| Name | John Langley |
|---|---|
| Title | Sole Shareholder |
| Phone | 3052941024 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261Q00000X | Clinic/Center | Primary | ME 0048558 | FL |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 732962 | Other | FL | MEDICARE # |
| 1952627739 | Other | FL | NPI |
Copy-ready billing details
Provider: John C. Langley MD LLC NPI: 1659822922 Taxonomy: 261Q00000X (Clinic/Center) Address: 3412 DUCK AVE, Key West, FL, 33040
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1902834591 | Jackie Lefferts | Individual | Pulmonary Disease Physician | Key West, FL |
Verify this record
Cross-check NPI 1659822922 against the authoritative CMS record: view John C. Langley MD LLC 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 John C. Langley MD LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-10-20.