Stephanie Ann Massaro, M.D., M.P.H.
Pediatric Hematology & Oncology Physician · New Haven, CT
Stephanie Ann Massaro, M.D., M.P.H. is a pediatric hematology & oncology physician with a practice address in New Haven, Connecticut, and NPI 1851534481, issued on Apr 13, 2009. Check the license (Connecticut 047534, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Stephanie Ann Massaro
- Credential
- M.D., M.P.H.
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License number
- 047534 CT
Self-reported in NPPES; status is on the state search - Practice location
- 333 Cedar St, New Haven, CT 06520
- Phone
- (203) 785-4640
- Enumerated
- Apr 13, 2009
- Record last updated
- Apr 13, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (203) 737-2228
- Medicare enrollment
- Enrolled (PECOS I20090806000680); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2003
- Entity
- Type 1 · individual
Also registered at 333 Cedar St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khalid Abbed, MDNeurological Surgery Physician1386612026
- Wasan Abd Wahab, M.D.Neurology Physician1881380053
- Ghaith Abdulkarim, M.D.Critical Care Medicine (Anesthesiology) Physician1295021236
- Clara Abraham, MDGastroenterology Physician1629139456
- Aymen Alian, M.B.B.CH, M.D.Anesthesiology Physician1386803740
- Robert Alpern, MDNephrology Physician1477785285
Verify Stephanie Ann Massaro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 047534Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Yale UniversityTrumbull, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pediatric Hematology & Oncology Physician providers in Connecticut
There are 37 pediatric hematology & oncology physician records in Connecticut.
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 Stephanie Ann Massaro, M.D., M.P.H.'s NPI number?
Stephanie Ann Massaro, M.D., M.P.H.'s National Provider Identifier (NPI) is 1851534481, issued on Apr 13, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Ann Massaro, M.D., M.P.H. located?
The NPPES record lists a practice address at 333 Cedar St, New Haven, CT, 06520. Phone: (203) 785-4640. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Ann Massaro, M.D., M.P.H.'s license?
NPPES lists Connecticut license number 047534, 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.