Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nicholas Orduno Roman, MD, PHD

Radiation Oncology Physician in Lake Havasu City, AZ · enumerated 2007.

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

National Provider Identifier

1427255314

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Registry record

Entity type Individual (Type 1)

Name Dr. Nicholas Orduno Roman

Credential MD, PHD

Sex Male

Practice address 101 Civic Center Ln, Lake Havasu City, AZ, 86403

Phone (928) 453-3771

Enumeration date Jul 2, 2007

Last updated in NPPES Apr 30, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 81951 (AZ) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License P3430 (TX) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 48773 (AZ) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Nicholas Roman?

Nicholas Roman is registered in NPPES with the primary taxonomy of Radiation Oncology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-30.