Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Caroline Lyle Arthur, M.D.
Surgery Physician in Fairfax, VA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669636809
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Registry record
Entity type Individual (Type 1)
Name Caroline Lyle Arthur
Credential M.D.
Sex Female
Practice address 3620 Joseph Siewick Dr, Suite 406, Fairfax, VA, 22033
Phone (703) 359-8640
Fax (703) 259-6324
Enumeration date Jul 16, 2008
Last updated in NPPES Jul 30, 2013
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1669636809 | Medicaid | VA | - |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Caroline Arthur?
Caroline Arthur is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Adil Ghauri Internal Medicine Physician · Fairfax, VA NPI 1689671414 Bridget Wolfe Certified Registered Nurse Anesthetist · Fairfax, VA NPI 1659371342 Keith Lawhorn Orthopaedic Surgery Physician · Fairfax, VA NPI 1083614218 John Moynihan Surgery Physician · Fairfax, VA NPI 1932195914 Leonard Fischer Gastroenterology Physician · Fairfax, VA NPI 1487614863 Laurel Kortum Pain Medicine (Anesthesiology) Physician · Fairfax, VA NPI 1295773729 Chethana Rao Internal Medicine Physician · Fairfax, VA NPI 1710917869 Ryan Fitzmorris Physician Assistant · Fairfax, VA NPI 1982621157
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-30.