Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Robert T. Ortwein, CSW
Social Worker in East Lansing, MI · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801061049
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Registry record
Entity type Individual (Type 1)
Name Mr. Robert T. Ortwein
Credential CSW
Sex Male
Practice address 234 Michigan Ave, East Lansing, MI, 48823
Phone (517) 337-6545
Fax (517) 337-3010
Enumeration date Apr 29, 2008
Last updated in NPPES Apr 29, 2008
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6401002895 (MI) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 6401002895 | Other | MI | STATE LICENSE |
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
Is NPI 1801061049 active?
Yes, as of the latest NPPES snapshot, NPI 1801061049 is active (record last updated 2008-04-29).
How do I verify Robert Ortwein's NPI record?
Cross-check NPI 1801061049 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Barry Mintzes Psychologist · East Lansing, MI NPI 1336298843 David Brown Psychologist · East Lansing, MI NPI 1245389766 Theresa Brown Social Worker · East Lansing, MI NPI 1881745073 Pamella Monaghan Social Worker · East Lansing, MI NPI 1336284850 Steven Rodriguez Social Worker · East Lansing, MI NPI 1629391289 Sigrid Dixon Clinical Psychologist · East Lansing, MI NPI 1639573132 Tammy Hancook Clinical Social Worker · East Lansing, MI NPI 1851768295
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-29.