Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Robert Nixon III, DO
Hospitalist Physician in Renton, WA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437655818
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Registry record
Entity type Individual (Type 1)
Name Dr. Robert Nixon III
Credential DO
Sex Male
Practice address 400 S 43rd St, Renton, WA, 98055
Phone (425) 690-1000
Enumeration date Apr 4, 2018
Last updated in NPPES Feb 18, 2026
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2192 (NE) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OP61585225 (WA) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License OP61585225 (WA) 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
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2357150 | Medicaid | WA | - |
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
What specialty is Robert Nixon?
Robert Nixon is registered in NPPES with the primary taxonomy of Hospitalist 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.
Other providers at this practice address
Browse all → Eduardo Margo Hospitalist Physician · Renton, WA NPI 1588660831 Vantage Radiology & Diagnostic Services, A Professional Services Corp Diagnostic Radiology Physician · Renton, WA NPI 1245230598 Associated Emergency Room Physicians, Inc P.S. Emergency Medicine Physician · Renton, WA NPI 1861480840 Imaging Partners at Valley LLC Diagnostic Radiology Physician · Renton, WA NPI 1215918081 Kathleen Porter Pharmacist · Renton, WA NPI 1841272630 Nicholas Rezek Physician Assistant · Renton, WA NPI 1356329221 Brian Levy Hospitalist Physician · Renton, WA NPI 1043272925 Stephen Bretz Emergency Medical Services (Emergency Medicine) Physician · Renton, WA NPI 1174581573
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-18.