Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Katherine Rumph, R.D/L.D

Registered Dietitian in Nowata, OK · enumerated 2013.

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

National Provider Identifier

1952641326

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Registry record

Entity type Individual (Type 1)

Name Mary Katherine Rumph

Credential R.D/L.D

Sex Female

Practice address 1020 Lenape Dr, Nowata, OK, 74048

Phone (918) 273-7500

Enumeration date Feb 22, 2013

Last updated in NPPES Feb 22, 2013

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 1870 (OK) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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 Mary Rumph?

Mary Rumph is registered in NPPES with the primary taxonomy of Registered Dietitian. 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 2013-02-22.