Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Elizabeth A Collier Sizemore, MD

Psychiatry Physician in Parkersburg, WV · enumerated 2016.

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

National Provider Identifier

1871955666

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Elizabeth A Collier Sizemore

Credential MD

Sex Female

Practice address 800 Garfield Ave, Parkersburg, WV, 26101

Phone (304) 424-2111

Fax (304) 420-7162

Enumeration date Mar 22, 2016

Last updated in NPPES Jun 7, 2024

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 29827 (WV) Primary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD483410 (PA) Secondary

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

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Elizabeth Collier Sizemore?

The National Provider Identifier (NPI) for Elizabeth Collier Sizemore is 1871955666, a Type 1 (individual) record in the CMS NPPES registry.

Where does Elizabeth Collier Sizemore practice?

The practice location on file with NPPES is in Parkersburg, WV. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-07.