Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David Betlejewski, MBA
Social Worker in Muskegon, MI · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326415738
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Registry record
Entity type Individual (Type 1)
Name David Betlejewski
Credential MBA
Sex Male
Practice address 1735 Peck St, Muskegon, MI, 49441
Phone (231) 747-8650
Fax (231) 395-5915
Enumeration date Sep 1, 2015
Last updated in NPPES Sep 1, 2015
Taxonomy & licenses
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 David Betlejewski?
The National Provider Identifier (NPI) for David Betlejewski is 1326415738, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Betlejewski practice?
The practice location on file with NPPES is in Muskegon, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Greeley Miklashek Psychiatry Physician · Muskegon, MI NPI 1962473082 Robert Lamson Clinical Psychologist · Muskegon, MI NPI 1518934975 Cedarbrook Psychological Services Clinical Social Worker · Muskegon, MI NPI 1760431282 Mary Jo Dempsey PC Clinical Social Worker · Muskegon, MI NPI 1780765271 Missi Nadeau Ph.D. P.L.C. Clinical Psychologist · Muskegon, MI NPI 1184898280 Community Awareness and Managing Pathways Adult Day Care Clinic/Center · Muskegon, MI NPI 1619580792
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-01.