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

Dr. William Victor Fattig, M.D.

Internal Medicine Physician in Alliance, NE · enumerated 2006 · practices at W.V. Fattig M.D..

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

National Provider Identifier

1811071442

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Registry record

Entity type Individual (Type 1)

Name Dr. William Victor Fattig

Credential M.D.

Sex Male

Practice address Alliance, NE, 69301

Phone (308) 225-4498

Fax (308) 629-1499

Enumeration date Oct 24, 2006

Last updated in NPPES Aug 15, 2016

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 21201 (NE) 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
200269730A	Other	KS	KANSAS MEDICAID
28D1030805	Other	NE	CLIA
35808	Other	NE	MIDLANDS
P00181202	Other	NE	RR MEDICARE

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 Fattig's NPI record?

Cross-check NPI 1811071442 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811071442 active?

Yes, as of the latest NPPES snapshot, NPI 1811071442 is active (record last updated 2016-08-15).

Other providers at this practice address

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W.V. Fattig M.D. Primary Care Clinic/Center · Alliance, NE NPI 1639242621

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-15.