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Jonathan Sporn, MD
NPI 1700889771 · Medical Oncology Physician · Hartford, CT
Jonathan Sporn, MD is a Medical Oncology Physician provider in Hartford, CT (NPI 1700889771).
Provider details
- NPI number
- 1700889771
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 028198 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
94 Woodland St
Hartford, CT 06105-1217
Phone: (860) 714-4680
Fax: (860) 714-8047
Street-level locationGet directions
Mailing address
1000 Asylum Ave
Hartford, CT 06105-1719
Registry dates
- Enumerated
- 2005-05-24
- Last updated
- 2013-01-15
Frequently asked questions
- What is Jonathan Sporn's NPI number?
- Jonathan Sporn's National Provider Identifier (NPI) is 1700889771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Sporn's specialty?
- Jonathan Sporn is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Sporn located?
- Jonathan Sporn's practice location on file with NPPES is 94 Woodland St, Hartford, CT 06105-1217.
- What is Jonathan Sporn's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Sporn is (860) 714-4680.
- Is Jonathan Sporn's NPI active?
- Yes — Jonathan Sporn's NPI (1700889771) is active in the NPPES registry as of the last update on 2013-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.