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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Prinsen, D.O., PH.D.

Internal Medicine Physician in Lodi, CA · enumerated 2016.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1790135754

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Registry record

Entity type Individual (Type 1)
Name Dr. Joseph Prinsen
Credential D.O., PH.D.
Sex Male
Practice address 975 S Fairmont Ave, Lodi, CA, 95240
Phone (209) 334-3411
Enumeration date Jun 20, 2016
Last updated in NPPES Dec 5, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5101022490 (MI) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A-2292-19 (NM) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DO-05466 (IA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 3868 (TN) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0102207828 (VA) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License H90545 (MD) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 20A19528 (CA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A19528 (CA) Primary
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

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.

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Frequently asked questions

How do I verify Joseph Prinsen's NPI record?
Cross-check NPI 1790135754 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1790135754 active?
Yes, as of the latest NPPES snapshot, NPI 1790135754 is active (record last updated 2024-12-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-05.