Aron Flagg, M.D.
Pediatric Hematology & Oncology Physician · New Haven, CT
Aron Flagg, M.D. is a pediatric hematology & oncology physician with a practice address in New Haven, Connecticut, and NPI 1255534855, issued on Jun 9, 2007. Check the license (Connecticut 62157, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Aron Flagg
- Credential
- M.D.
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License numbers
- 62157 CT
35.091439 OH
Self-reported in NPPES; status is on the state search - Practice location
- 35 Park St, New Haven, CT 06511
- Phone
- (203) 785-4640
- Enumerated
- Jun 9, 2007
- Record last updated
- Jan 7, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 737-2228
- Entity
- Type 1 · individual
Also registered at 35 Park St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Talita Acciari, APRNFamily Nurse Practitioner1275469777
- Jennifer Afranie-Sakyi, MDHematology & Oncology Physician1902369358
- Prasanna Ananth, MD, MPHPediatric Hematology & Oncology Physician1982865903
- Josephine Ankrah, PA-C, MPHPhysician Assistant1144968918
- Amanda AntonelliClinical Social Worker1932840105
- Mary Barden, MDNeurology Physician1568999480
Verify Aron Flagg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 62157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Pediatric Hematology & Oncology Physician providers in Connecticut
There are 37 pediatric hematology & oncology physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other pediatric hematology & oncology physician records in Connecticut
- Taylor Aglio, M.D.Hartford, CT1285015453
- Arnold Altman, MDHartford, CT1376515239
- Prasanna Ananth, MD, MPHNew Haven, CT1982865903
- Martin Andreansky, MD, PHDHartford, CT1275505067
- Nitya Bakshi, MDNew Haven, CT1174764252
- Erin Barthel, M.D.Hartford, CT1174798706
- Natalie Bezler, M.D.Hartford, CT1083814255
- Donna Boruchov, MDHartford, CT1477644805
- Evan Cantor, MDHartford, CT1649684937
- Sarah Chirnomas, MDNew Haven, CT1326000860
Common questions
What is Aron Flagg, M.D.'s NPI number?
Aron Flagg, M.D.'s National Provider Identifier (NPI) is 1255534855, issued on Jun 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Aron Flagg, M.D. located?
The NPPES record lists a practice address at 35 Park St, New Haven, CT, 06511. Phone: (203) 785-4640. Providers update this record themselves, so call before visiting.
How can I verify Aron Flagg, M.D.'s license?
NPPES lists Connecticut license number 62157, 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. 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.