Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Donald D Ludwig, MSW LSW
Psychologist in Sewickley, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1982767190
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Registry record
Entity type Individual (Type 1)
Name Mr. Donald D Ludwig
Credential MSW LSW
Sex Male
Practice address 414 Grant Street, Sewickley, PA, 15143
Phone (412) 741-7430
Fax (412) 741-5171
Enumeration date Dec 18, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License SW003273E (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.
Frequently asked questions
How do I verify Donald Ludwig's NPI record?
Cross-check NPI 1982767190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1982767190 active?
Yes, as of the latest NPPES snapshot, NPI 1982767190 is active (record last updated 2007-07-08).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.