Julia Kathryn Weld, DO
Pediatric Cardiology Physician · Boston, MA
Julia Kathryn Weld, DO is a pediatric cardiology physician with a practice address in Boston, Massachusetts, and NPI 1033503198, issued on Mar 26, 2015. Check the license (Massachusetts 1017111, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Julia Kathryn Weld
- Credential
- DO
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License numbers
- 1017111 MA
294217-1 NY
OS021985 PA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- Mar 26, 2015
- Record last updated
- Oct 5, 2023
- Medicare enrollment
- Enrolled (PECOS I20231018003414); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 129 in Massachusetts → Look up another NPI →
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 Julia Kathryn Weld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1017111Check 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
- Boston Childrens Heart Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julia Kathryn Weld among 129 pediatric cardiology physician records in Massachusetts
Julia Kathryn Weld, DO is one of 129 pediatric cardiology physician records with a practice address in Massachusetts. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 70% of them.
- NPI issued2015 · 70% of these records are older, 22% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2015 · median 2007 among the 71 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Massachusetts
There are 129 pediatric cardiology physician records in Massachusetts.
All 129 in Massachusetts → Every provider in Boston → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Lisa Bergersen, MD MPHBoston, MA 021151942299730
- David Brown, MDBoston, MA 021151952392888
- Sarah De Ferranti, MDBoston, MA 021151528059474
- David Fulton, MDBoston, MA 021151710978671
- Robert Geggel, MDBoston, MA 021151033100912
- Tal Geva, MDBoston, MA 021151093706988
- Kathy Jenkins, MDBoston, MA 021151518958404
- Jami Levine, MDBoston, MA 021151437140894
Common questions
What is Julia Kathryn Weld, DO's NPI number?
Julia Kathryn Weld, DO's National Provider Identifier (NPI) is 1033503198, issued on Mar 26, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Julia Kathryn Weld, DO 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 Julia Kathryn Weld, DO's license?
NPPES lists Massachusetts license number 1017111, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. 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.