Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas C Rienks, OD

Optometrist in Lincoln, NE · enumerated 2007.

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

National Provider Identifier

1871648386

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas C Rienks

Credential OD

Sex Male

Practice address 2550 Superior Street, Suite 150, Lincoln, NE, 68521

Phone (402) 435-1166

Fax (402) 435-1194

Enumeration date Jan 24, 2007

Last updated in NPPES Nov 26, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1014 (NE) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
470839840	Other	NE	VISION SERVICE PLAN
470839840	Other	NE	UNITED HEALTH CARE
36355	Other	NE	BLUE CROSS BLUE SHIELD
47083984000	Medicaid	NE	-
470839840	Other	NE	MIDLANDS CHOICE

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

What specialty is Douglas Rienks?

Douglas Rienks is registered in NPPES with the primary taxonomy of Optometrist. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-26.