NPI Portal NPI Lookup & Verification

Daniel Preston Flanigan, M.D.

Daniel Preston Flanigan is a Vascular Surgery Physician provider (Surgery) practicing in Orange, CA, registered in the NPPES registry with NPI 1770584534 since 2005. The credential MD stands for Doctor of Medicine. Practices at Vascular and Interventional Specialists of Orange County, Inc. (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI 1770584534
Entity type Individual (Type 1)
Name Daniel Preston Flanigan
Credential M.D.
Sex Male
Practice address 1010 W LA VETA AVE STE 320, Orange, CA, 92868
Phone 7145604450
Fax 7145604455
Enumeration date 2005-08-02
Last updated in NPPES 2021-03-30

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2086S0129X Vascular Surgery Physician Primary G063532 CA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: Daniel Flanigan, M.D.
NPI: 1770584534
Taxonomy: 2086S0129X (Vascular Surgery Physician)
Address: 1010 W LA VETA AVE STE 320, Orange, CA, 92868

Other providers at this practice address

NPI Name Type Specialty Location
1629070610 Vascular and Interventional Specialists of Orange County, Inc. Organization Vascular Surgery Physician Orange, CA
1003164112 Xuan-Binh Pham Individual Vascular Surgery Physician Orange, CA
1730587379 Eric Kuo Individual Vascular Surgery Physician Orange, CA
1174156194 Chloe Tyau Individual Physician Assistant Orange, CA

Verify this record

Cross-check NPI 1770584534 against the authoritative CMS record: view Daniel Preston Flanigan 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 the NPI number for Daniel Flanigan?
The National Provider Identifier (NPI) for Daniel Flanigan is 1770584534, a Type 1 (individual) record in the CMS NPPES registry.
Where does Daniel Flanigan practice?
The practice location on file with NPPES is in Orange, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-03-30.