Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David B Markley, MA

Professional Counselor in Warren, PA · enumerated 2008.

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

National Provider Identifier

1528227618

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Registry record

Entity type Individual (Type 1)

Name David B Markley

Credential MA

Sex Male

Practice address 185 Hospital Dr, Warren, PA, 16365

Phone (814) 723-1330

Fax (814) 723-5744

Enumeration date Jun 4, 2008

Last updated in NPPES Jun 4, 2008

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License PC001708 (PA) Primary

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

What is the NPI number for David Markley?

The National Provider Identifier (NPI) for David Markley is 1528227618, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Markley practice?

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

Other providers at this practice address

Browse all →

Larry Koppelman Clinical Social Worker · Warren, PA NPI 1538248430 Charlotte Uber Mental Health Counselor · Warren, PA NPI 1801920194 John Bowler Professional Counselor · Warren, PA NPI 1194859462 Amanda Wellner Social Worker · Warren, PA NPI 1487885844

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-04.