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Jonathan Sporn, MD

Medical Oncology Physician in Hartford, CT · enumerated 2005 · practices at Connecticut Radiation Oncology, P.C..

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

National Provider Identifier

1700889771

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Registry record

Entity type Individual (Type 1)
Name Jonathan Sporn
Credential MD
Sex Male
Practice address 94 Woodland St, Hartford, CT, 06105
Phone (860) 714-4680
Fax (860) 714-8047
Enumeration date May 24, 2005
Last updated in NPPES Jan 15, 2013

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 028198 (CT) 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
001281989 Medicaid CT -

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

Where does Jonathan Sporn practice?
The practice location on file with NPPES is in Hartford, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jonathan Sporn?
The National Provider Identifier (NPI) for Jonathan Sporn is 1700889771, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-15.