Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Catherine Allensworth, RN

Registered Nurse in Hannibal, MO · enumerated 2010.

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

National Provider Identifier

1558687764

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Catherine Allensworth

Credential RN

Sex Female

Practice address 154 Forrest Dr, Hannibal, MO, 63401

Phone (573) 221-2120

Fax (573) 248-4380

Enumeration date Apr 13, 2010

Last updated in NPPES Apr 9, 2021

Taxonomy & licenses

164W00000X Licensed Practical Nurse Nursing Service Providers · License 046420 (MO) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 2015026442 (MO) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Allensworth?

Mary Allensworth is registered in NPPES with the primary taxonomy of Registered Nurse. 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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Mark Twain Association for Mental Health, Inc. Adolescent and Children Mental Health Clinic/Center · Hannibal, MO NPI 1417004094 Mark Twain Association for Mental Health, Inc. Case Management Agency · Hannibal, MO NPI 1043367626 Mark Twain Association for Mental Health, Inc. Adult Mental Health Clinic/Center · Hannibal, MO NPI 1184771149 Mark Twain Association for Mental Health, Inc. Community/Behavioral Health Agency · Hannibal, MO NPI 1538216197 Mark Twain Association for Mental Health, Inc. Community/Behavioral Health Agency · Hannibal, MO NPI 1447307004 Mark Twain Association for Mental Health, Inc. Community/Behavioral Health Agency · Hannibal, MO NPI 1700933363 Benjamin Failor Professional Counselor · Hannibal, MO NPI 1790971208 Christina Plenge Clinical Social Worker · Hannibal, MO NPI 1285812941

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-09.