Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joseph Erik Testa, DO
Surgery Physician in Owosso, MI · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336325745
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Registry record
Entity type Individual (Type 1)
Name Joseph Erik Testa
Credential DO
Sex Male
Practice address 818 W King St Ste 201, Owosso, MI, 48867
Phone (989) 723-3168
Fax (989) 725-2962
Enumeration date Jan 16, 2008
Last updated in NPPES Feb 20, 2019
Taxonomy & licenses
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1336325745 | Medicaid | MI | - |
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 1336325745 active?
Yes, as of the latest NPPES snapshot, NPI 1336325745 is active (record last updated 2019-02-20).
How do I verify Joseph Testa's NPI record?
Cross-check NPI 1336325745 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 → Erik Harp Physician Assistant · Owosso, MI NPI 1164856928 Sasha Spencley Surgery Physician · Owosso, MI NPI 1427409762 Shannon Ball Nurse Practitioner · Owosso, MI NPI 1538621073 Scott Boyd Physician Assistant · Owosso, MI NPI 1134766942 Miranda Weaver Adult Health Nurse Practitioner · Owosso, MI NPI 1801422845 Alexandria Barberbraun Family Nurse Practitioner · Owosso, MI NPI 1780420927
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-20.