Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eugen Ivan, MD

Specialist in Lawton, OK · enumerated 2006.

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

National Provider Identifier

1790735389

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Registry record

Entity type Individual (Type 1)

Name Eugen Ivan

Credential MD

Sex Male

Practice address 3106 Nw Arlington Ave, Lawton, OK, 73505

Phone (580) 250-4278

Fax (580) 581-1548

Enumeration date May 12, 2006

Last updated in NPPES Aug 18, 2010

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 6121228-1205 (UT) Primary

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.

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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 Eugen Ivan?

Eugen Ivan is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Thomas Mills Physician Assistant · Lawton, OK NPI 1033116363 Tomasz Swierkosz Cardiovascular Disease Physician · Lawton, OK NPI 1386629111 Vijaya Velury Cardiovascular Disease Physician · Lawton, OK NPI 1518915750 Robert Sweeney Cardiovascular Disease Physician · Lawton, OK NPI 1679527030 Heart & Vascular Center Pllc Cardiovascular Disease Physician · Lawton, OK NPI 1730115114 Bassam Saliba Cardiovascular Disease Physician · Lawton, OK NPI 1861412223 Sherryl Evans Physician Assistant · Lawton, OK NPI 1144232570 Srilatha Ayirala Cardiovascular Disease Physician · Lawton, OK NPI 1710174867

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-18.