Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Merry Oelmann, ARNP

Nurse Practitioner in Waterloo, IA · enumerated 2005.

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

National Provider Identifier

1043295371

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Registry record

Entity type Individual (Type 1)

Name Merry Oelmann

Credential ARNP

Sex Female

Practice address 905 Franklin St, Waterloo, IA, 50703

Phone (319) 272-4300

Enumeration date Dec 9, 2005

Last updated in NPPES Apr 30, 2018

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 068198 (IA) Primary

Other identifiers

Identifier	Type	State	Issuer
54060	Other	IA	WELLMARK
0076372	Medicaid	IA	-

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 Merry Oelmann?

Merry Oelmann is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-30.