Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John J Ludwig, MA, LMSW, LPC
Social Worker in Flint, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518096882
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Registry record
Entity type Individual (Type 1)
Name Mr. John J Ludwig
Credential MA, LMSW, LPC
Sex Male
Practice address 901 Chippewa St, Flint, MI, 48503
Phone (810) 232-9950
Fax (810) 232-7599
Enumeration date Mar 5, 2007
Last updated in NPPES Dec 10, 2010
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6401000365 (MI) Primary
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 6401000365 (MI) Secondary
LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy.
About the LPC 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.
Frequently asked questions
What is the NPI number for John Ludwig?
The National Provider Identifier (NPI) for John Ludwig is 1518096882, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Ludwig practice?
The practice location on file with NPPES is in Flint, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Michael Kraemer Clinical Social Worker · Flint, MI NPI 1952310401 Hana Cheatom Counselor · Flint, MI NPI 1669574224 David Knapp Counselor · Flint, MI NPI 1275624629 Kimberly Warchol Smith Addiction (Substance Use Disorder) Counselor · Flint, MI NPI 1487740874 Lorna Pozarek Social Worker · Flint, MI NPI 1821175233 Deborah Mccormack Clinical Social Worker · Flint, MI NPI 1306995899 Rozelle White Addiction (Substance Use Disorder) Counselor · Flint, MI NPI 1295864213 Archie Bowers Social Worker · Flint, MI NPI 1922138494
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-10.