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John Joseph O'Connell, M.D.

Radiation Oncology Physician in Greenville, SC · enumerated 2007.

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

National Provider Identifier

1952455768

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Registry record

Entity type Individual (Type 1)
Name John Joseph O'Connell
Credential M.D.
Sex Male
Practice address 900 W Faris Rd, Greenville, SC, 29605
Phone (864) 455-7070
Fax (864) 454-4669
Enumeration date Jan 22, 2007
Last updated in NPPES Jun 14, 2021

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 9501034 (NC) Secondary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 37316 (SC) Primary
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
373161 Medicaid SC -

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

What is the NPI number for John O'Connell?
The National Provider Identifier (NPI) for John O'Connell is 1952455768, a Type 1 (individual) record in the CMS NPPES registry.
Where does John O'Connell practice?
The practice location on file with NPPES is in Greenville, SC. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-14.