Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Koff, MD

Psychiatry Physician in Wilmington, NC · enumerated 2006.

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

National Provider Identifier

1912922568

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Registry record

Entity type Individual (Type 1)

Name Dr. William Koff

Credential MD

Sex Male

Practice address Wilmington, NC, 28403

Phone (910) 791-5719

Fax (910) 799-8180

Enumeration date Jul 13, 2006

Last updated in NPPES Mar 12, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 28245 (NC) Primary

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 224 (NC) Secondary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 2075 (NC) Secondary

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
15-99803	Other	-	UHC
51752	Other	-	CIGNA
71576	Other	-	MHN
177281	Other	-	COMPYCH
066793/A195156	Other	-	VALUE OPTIONS
4318089	Other	-	AETNA
49991	Other	NC	BLUE CROSS BLUE SHIELD

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

How do I verify William Koff's NPI record?

Cross-check NPI 1912922568 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1912922568 active?

Yes, as of the latest NPPES snapshot, NPI 1912922568 is active (record last updated 2008-03-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-12.