Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Roger Michael Simon, MD

Ophthalmology Physician in Las Vegas, NV · enumerated 2006 · practices at Las Vegas Dermatology PC.

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

National Provider Identifier

1831135854

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Registry record

Entity type Individual (Type 1)

Name Dr. Roger Michael Simon

Credential MD

Sex Male

Practice address 653 N Town Center Drive, Suite 518, Las Vegas, NV, 89144

Phone (702) 369-0200

Fax (702) 243-8383

Enumeration date Jun 20, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 4044 (NV) 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
CC6531	Other	NV	BCBS ANTHEM
P00180774	Other	NV	RAILROAD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Roger Simon?

Roger Simon is registered in NPPES with the primary taxonomy of Ophthalmology 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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Allen Thach Ophthalmology Physician · Las Vegas, NV NPI 1457305625 Las Vegas Dermatology PC Dermatology Physician · Las Vegas, NV NPI 1730375262

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.