John D. Roberts
Hematology & Oncology Physician · New Haven, CT
John D. Roberts is a hematology & oncology physician with a practice address in New Haven, Connecticut, and NPI 1992887491, issued on Oct 20, 2006. Check the license (Connecticut 051021, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John D. Roberts
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 051021 CT
Self-reported in NPPES; status is on the state search - Practice location
- 333 Cedar Street, New Haven, CT 06520
- Phone
- (203) 737-1600
- Enumerated
- Oct 20, 2006
- Record last updated
- Feb 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (203) 785-3788
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 198 in Connecticut → Look up another NPI →
Also registered at 333 Cedar Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jeptha Curtis, MDCardiovascular Disease Physician1700876273
- Philip Effraim, MD PHDAnesthesiology Physician1427347616
Verify John D. Roberts in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 051021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $6,672.00
9 payments; by number, the most common kind was travel and lodging; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John D. Roberts among 198 hematology & oncology physician records in Connecticut
John D. Roberts is one of 198 hematology & oncology physician records with a practice address in Connecticut. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 52% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2015 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Connecticut
There are 198 hematology & oncology physician records in Connecticut.
All 198 in Connecticut → Every provider in New Haven → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Alain Mina, MDNew Haven, CT 065201881078319
- Jennifer Afranie-Sakyi, MDNew Haven, CT 065191902369358
- Jan Philipp Bewersdorf, MDNew Haven, CT 065191174013601
- Jeremy Jacox, MD, PHDNew Haven, CT 065191811424070
- Shalin Kothari, MDNew Haven, CT 065191417391525
- Karishma Mehra, MDNew Haven, CT 065191861706939
- Tarsheen Sethi, MD, MSCINew Haven, CT 065191831417773
- Eric Bleickardt, MDHamden, CT 065181265746879
Common questions
What is John D. Roberts's NPI number?
John D. Roberts's National Provider Identifier (NPI) is 1992887491, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. Roberts located?
The NPPES record lists a practice address at 333 Cedar Street, New Haven, CT, 06520. Phone: (203) 737-1600. Providers update this record themselves, so call before visiting.
How can I verify John D. Roberts's license?
NPPES lists Connecticut license number 051021, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.