Northwest Internists LLC
Northwest Internists LLC is a healthcare organization registered as Internal Medicine Physician in Mc Lean, VA, holding Type 2 (organization) NPI 1770536724 since 2006. The authorized official on file is Thomas Masterson, Director.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1770536724 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Northwest Internists LLC |
| Practice address | 1313 DOLLEY MADISON BLVD, SUITE 302, Mc Lean, VA, 22101 |
| Phone | 7033562037 |
| Fax | 7037348987 |
| Enumeration date | 2006-05-19 |
| Last updated in NPPES | 2007-11-07 |
Authorized official
| Name | Thomas Masterson |
|---|---|
| Title | Director |
| Phone | 7033562037 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Primary | 0101038350 | VA |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0101038350 | Other | VA | MEDICAL LICENSE |
Copy-ready billing details
Provider: Northwest Internists LLC NPI: 1770536724 Taxonomy: 207R00000X (Internal Medicine Physician) Address: 1313 DOLLEY MADISON BLVD, SUITE 302, Mc Lean, VA, 22101
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1972538502 | Linz Audain, MD, LLC | Organization | Internal Medicine Physician | Mclean, VA |
| 1003973165 | Bruce Lessin | Individual | Internal Medicine Physician | Mclean, VA |
| 1245438324 | Bradley Wiltbank | Individual | Oral and Maxillofacial Surgery (Dentist) | Mc Lean, VA |
| 1558536326 | Edward Chun | Individual | Endodontics | Mc Lean, VA |
| 1104083310 | Van Le | Individual | General Practice Dentistry | Mc Lean, VA |
| 1639336852 | John Dewinkler | Individual | General Practice Dentistry | Mc Lean, VA |
| 1689807471 | Tong-Yen Huang | Individual | Endodontics | Mc Lean, VA |
| 1194091744 | Bruce E Lessin M D P C | Organization | Internal Medicine Physician | Mc Lean, VA |
Verify this record
Cross-check NPI 1770536724 against the authoritative CMS record: view Northwest Internists 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 Northwest Internists LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2007-11-07.