Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ronald Robert Barbosa, M.D.
Surgery Physician in Portland, OR · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134104961
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Registry record
Entity type Individual (Type 1)
Name Dr. Ronald Robert Barbosa
Credential M.D.
Sex Male
Practice address 300 N Graham St Ste 125, Portland, OR, 97227
Phone (503) 413-3714
Fax (503) 413-2061
Enumeration date Dec 14, 2005
Last updated in NPPES Nov 19, 2019
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 |
|---|---|---|---|
| 00A75479 | Medicaid | CA | - |
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 1134104961 active?
Yes, as of the latest NPPES snapshot, NPI 1134104961 is active (record last updated 2019-11-19).
How do I verify Ronald Barbosa's NPI record?
Cross-check NPI 1134104961 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 → Jonathan Van Horn Physician Assistant · Portland, OR NPI 1992798060 Riyad Karmy-Jones Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Portland, OR NPI 1023077500 Brian Beldowicz Surgery Physician · Portland, OR NPI 1952503989 Rishi Rattan Surgical Critical Care Physician · Portland, OR NPI 1659507523 Amelia Johnson Physician Assistant · Portland, OR NPI 1962755801 Abigail Ritter Physician Assistant · Portland, OR NPI 1225424088 Kyle Saxe Physician Assistant · Portland, OR NPI 1659757193 Barron Davis Oral and Maxillofacial Surgery (Dentist) · Portland, OR NPI 1154874469
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-19.