Elsa Treffeisen
Pediatric Allergy/Immunology Physician · Boston, MA
Elsa Treffeisen is a pediatric allergy/immunology physician with a practice address in Boston, Massachusetts, and NPI 1780116954, issued on Mar 28, 2017. Check the license (Massachusetts 282739, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Elsa Treffeisen
- Primary taxonomy
- Pediatric Allergy/Immunology Physician 2080P0201X
- License number
- 282739 MA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- Mar 28, 2017
- Entity
- Type 1 · individual
Also registered at 300 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sylvia Abadir, MDPediatric Cardiology Physician1427366459
- Isabel Abbott, MDNeurology with Special Qualifications in Child Neurology Physician1033772579
- Kristin Abdelnour, PTPhysical Therapist1982821302
- Mohamed Abdelrahman, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1558050591
- Nadia Abdulrazak, N.P.Adult Health Nurse Practitioner1952616682
- Dhatri AbeyaratneStudent in an Organized Health Care Education/Training Program1437098233
Verify Elsa Treffeisen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 282739Check 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 Allergy/Immunology Physician providers in Massachusetts
There are 23 pediatric allergy/immunology physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other pediatric allergy/immunology physician records in Massachusetts
- Tina Banzon, MDBoston, MA1821597253
- Ana Broyles, MDBoston, MA1346330446
- Javier Cabrera-Perez, MD, PHDBoston, MA1124523048
- Sarah Chamseddine, M.D.Boston, MA1275197550
- Elena Crestani, M.D.Boston, MA1790084796
- Brittany Esty, M.D.Boston, MA1972894988
- Michele Gottlieb, M.D.Southborough, MA1568488161
- Rebecca Hale, MD/PHDBoston, MA1629500228
- David Hoytema Van Konijnenburg, MD, PHDBoston, MA1134623150
- Zeynep Kucuk, M.D.Boston, MA1891924031
Common questions
What is Elsa Treffeisen's NPI number?
Elsa Treffeisen's National Provider Identifier (NPI) is 1780116954, issued on Mar 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Elsa Treffeisen located?
The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.
How can I verify Elsa Treffeisen's license?
NPPES lists Massachusetts license number 282739, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.