Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark S Reef, MSN, RN, PMHCNS-BC

Q: What is the NPI number for Mark Reef?

The National Provider Identifier (NPI) for Mark Reef is 1962512681, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Nurse Specialist in West Lafayette, IN · enumerated 2006 · practices at Purdue University.

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

National Provider Identifier

1962512681

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Registry record

Entity type Individual (Type 1)

Name Mark S Reef

Credential MSN, RN, PMHCNS-BC

Sex Male

Practice address 601 Stadium Mall Dr, West Lafayette, IN, 47907

Phone (765) 464-6995

Enumeration date Aug 30, 2006

Last updated in NPPES Nov 29, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 28124380 (IN) Secondary

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 70000144 (IN) 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

Where does Mark Reef practice?

The practice location on file with NPPES is in West Lafayette, IN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mark Reef?

The National Provider Identifier (NPI) for Mark Reef is 1962512681, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-29.