Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margaret Sidles Millar, MD

Emergency Medicine Physician in Moline, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1447239173

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Registry record

Entity type Individual (Type 1)

Name Dr. Margaret Sidles Millar

Credential MD

Sex Female

Practice address 600 John Deere Rd, Ste 401, Moline, IL, 61265

Phone (309) 779-4950

Fax (309) 779-4905

Enumeration date Jan 11, 2006

Last updated in NPPES Sep 5, 2018

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036-078142 (IL) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036.078142 (IL) Primary

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
00009683	Other	IL	RR MEDICARE
0360781422	Medicaid	IL	-
200345	Other	IL	ILLINOIS MEDICARE
8132014	Other	IL	ILLINOIS BLUE
F400293098	Other	IL	MEDICARE PTAN
1447239173	Medicaid	IA	-

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.

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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 Margaret Millar?

Margaret Millar is registered in NPPES with the primary taxonomy of Emergency Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-05.