Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Crystal N Marks, RN

Registered Nurse in Bucyrus, OH · enumerated 2017.

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

National Provider Identifier

1528598182

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Registry record

Entity type Individual (Type 1)

Name Crystal N Marks

Credential RN

Sex Female

Practice address 2458 Stetzer Rd, Bucyrus, OH, 44820

Phone (419) 562-2000

Enumeration date Jun 15, 2017

Last updated in NPPES Jun 15, 2017

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN.239108 (OH) 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 Crystal Marks?

Crystal Marks 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-06-15.