Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary A. Koenig, MD

Allergy & Immunology Physician in Omaha, NE · enumerated 2005.

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

National Provider Identifier

1942204656

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Registry record

Entity type Individual (Type 1)

Name Gary A. Koenig

Credential MD

Sex Male

Practice address 1120 N 103rd Plz, Suite 102, Omaha, NE, 68114

Phone (402) 354-0120

Fax (402) 354-0125

Enumeration date Jun 9, 2005

Last updated in NPPES Aug 22, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 17844 (NE) Secondary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 17844 (NE) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 17844 (NE) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 17844 (NE) Secondary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 23943 (IA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 23943 (IA) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 23943 (IA) Secondary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 23943 (IA) 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
10026480109	Medicaid	NE	-
1942204656	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Gary Koenig?

Gary Koenig is registered in NPPES with the primary taxonomy of Allergy & Immunology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Frank Mezzacappa Pulmonary Disease Physician · Omaha, NE NPI 1093719791 Sylvia Rael Pulmonary Disease Physician · Omaha, NE NPI 1386648095 Guillermo Huerta Pulmonary Disease Physician · Omaha, NE NPI 1144224841 Karla Lessman Medical Physician Assistant · Omaha, NE NPI 1528062239 James Bowers Pulmonary Disease Physician · Omaha, NE NPI 1255335972 Traci Jurrens Cardiovascular Disease Physician · Omaha, NE NPI 1588641385 Neika Coughlin Nurse Practitioner · Omaha, NE NPI 1982673331 Ailene Nielsen Nurse Practitioner · Omaha, NE NPI 1770542839

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-22.