Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen Robert Kruger, DO

Family Medicine Physician in Tracy, CA · enumerated 2019 · practices at Sutter Valley Medical Foundation.

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

National Provider Identifier

1053979674

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen Robert Kruger

Credential DO

Sex Male

Practice address 445 W Eaton Ave, Tracy, CA, 95376

Phone (209) 830-4075

Enumeration date May 29, 2019

Last updated in NPPES May 10, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 315634 (NY) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 25MB11240400 (NJ) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A22402 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Stephen Kruger?

Stephen Kruger is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-10.