Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William James Thomas, M.D.

Ophthalmology Physician in Omaha, NE · enumerated 2006.

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

National Provider Identifier

1245246263

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Registry record

Entity type Individual (Type 1)

Name Dr. William James Thomas

Credential M.D.

Sex Male

Practice address 11606 Nicholas St, Suite 200, Omaha, NE, 68154

Phone (402) 493-3712

Fax (402) 493-8341

Enumeration date Jul 31, 2006

Last updated in NPPES Mar 20, 2009

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 22901 (NE) Primary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 35727 (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
37582	Other	IA	WELLMARK
47084218400	Medicaid	NE	-
04289	Other	NE	BLUE CROSS & BLUE SHIELD
244687	Other	NE	MIDLANDS CHOICE
0586289	Other	IA	IOWA MEDICAID
P00182839	Other	NE	RAILROAD MEDICARE
0800818	Other	NE	UNITED HEALTHCARE
I12596	Other	IA	IOWA MEDICARE

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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 William Thomas?

William Thomas 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.

Other providers at this practice address

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Louis Deluca Certified Registered Nurse Anesthetist · Omaha, NE NPI 1588635908 Central Plains Anesthesia Certified Registered Nurse Anesthetist · Omaha, NE NPI 1770555773 Sao Liu Ophthalmology Physician · Omaha, NE NPI 1548275472 Omega Surgery Center LLC Ambulatory Surgical Clinic/Center · Omaha, NE NPI 1255346045 Sao Liu Ophthalmology Physician · Omaha, NE NPI 1801802806 Christopher Bergman Optometrist · Omaha, NE NPI 1538175567 Omaha Eye & Laser Institute, Inc. Ophthalmology Physician · Omaha, NE NPI 1154424307 Omega Surgery Center LLC Ambulatory Surgical Clinic/Center · Omaha, NE NPI 1942306816

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-20.