Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sean M Milligan, MD
Neurology Physician in Amarillo, TX · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861438061
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Registry record
Entity type Individual (Type 1)
Name Sean M Milligan
Credential MD
Sex Male
Practice address 6700 W 9th Ave, Amarillo, TX, 79106
Phone (806) 358-0200
Fax (806) 356-5590
Enumeration date Jun 22, 2006
Last updated in NPPES Dec 7, 2021
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 |
|---|---|---|---|
| 182106803 | Medicaid | TX | - |
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 NPI 1861438061 active?
Yes, as of the latest NPPES snapshot, NPI 1861438061 is active (record last updated 2021-12-07).
How do I verify Sean Milligan's NPI record?
Cross-check NPI 1861438061 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-07.