Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Darren M Kowalski, M.D.
Surgery Physician in Bend, OR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598859076
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Registry record
Entity type Individual (Type 1)
Name Dr. Darren M Kowalski
Credential M.D.
Sex Male
Practice address 1501 Ne Medical Center Dr, Bend, OR, 97701
Phone (541) 382-2811
Enumeration date Oct 2, 2006
Last updated in NPPES Apr 6, 2021
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00834437 | Other | OR | MEDICARE RAILROAD |
| 287812 | Medicaid | OR | - |
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
How do I verify Darren Kowalski's NPI record?
Cross-check NPI 1598859076 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1598859076 active?
Yes, as of the latest NPPES snapshot, NPI 1598859076 is active (record last updated 2021-04-06).
Other providers at this practice address
Browse all → William Schmidt Hematology & Oncology Physician · Bend, OR NPI 1467455386 Mark Belza Neurological Surgery Physician · Bend, OR NPI 1740284777 Tammy Bull Obstetrics & Gynecology Physician · Bend, OR NPI 1689678278 Christopher Richards Emergency Medicine Physician · Bend, OR NPI 1528062056 Jeffrey Davis Internal Medicine Physician · Bend, OR NPI 1942205752 James Ockner Diagnostic Radiology Physician · Bend, OR NPI 1366448821 Andrew Sargent Physician Assistant · Bend, OR NPI 1184624223 Adam Williams Allergy & Immunology Physician · Bend, OR NPI 1265433445
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-06.