NPPES file of Aug 9, 2026

Joshua Nagler, MD

Pediatric Emergency Medicine (Pediatrics) Physician · Boston, MA

Joshua Nagler, MD is a pediatric emergency medicine (pediatrics) physician with a practice address in Boston, Massachusetts, and NPI 1891741369, issued on May 26, 2006. Check the license (Massachusetts 211237, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891741369
Name
Joshua Nagler
Credential
MD
Primary taxonomy
Pediatric Emergency Medicine (Pediatrics) Physician 2080P0204X
License number
211237 MA
Self-reported in NPPES; status is on the state search
Practice location
300 Longwood Ave, Boston, MA 02115
Phone
(617) 355-6624
Enumerated
May 26, 2006
Record last updated
Jun 26, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(617) 730-0335
Medicare enrollment
Enrolled (PECOS I20040601000995); accepts Medicare assignment
Medical or professional school
Js Weill Medical College, Cornell University, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 Longwood Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sylvia Abadir, MDPediatric Cardiology Physician1427366459
  2. Isabel Abbott, MDNeurology with Special Qualifications in Child Neurology Physician1033772579
  3. Kristin Abdelnour, PTPhysical Therapist1982821302
  4. Mohamed Abdelrahman, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1558050591
  5. Nadia Abdulrazak, N.P.Adult Health Nurse Practitioner1952616682
  6. Dhatri AbeyaratneStudent in an Organized Health Care Education/Training Program1437098233

Verify Joshua Nagler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 211237
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Children's Hospital Pediatric Associates, IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joshua Nagler among 131 pediatric emergency medicine (pediatrics) physician records in Massachusetts

Joshua Nagler, MD is one of 131 pediatric emergency medicine (pediatrics) physician records with a practice address in Massachusetts. 24% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 24% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated1998 · median 2008 among the 28 with a school on file
  • Record last updated2015 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0204X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Emergency Medicine (Pediatrics) Physician providers in Massachusetts

There are 131 pediatric emergency medicine (pediatrics) physician records in Massachusetts.

The 8 pediatric emergency medicine (pediatrics) physician records with the nearest ZIP codes

  1. Richard Bachur, MDBoston, MA 021151952367997
  2. Marc Baskin, MDBoston, MA 021151598729451
  3. Theresa Becker, DOBoston, MA 021151952365827
  4. Marisa Brett-Fleegler, MDBoston, MA 021151588629299
  5. Robyn Byer, MDBoston, MA 021151902861511
  6. Andrew Capraro, MDBoston, MA 021151881650463
  7. Eric Fleegler, MD, MPHBoston, MA 021151215923362
  8. June Hanly, MDBoston, MA 021151316905474

Common questions

What is Joshua Nagler, MD's NPI number?

Joshua Nagler, MD's National Provider Identifier (NPI) is 1891741369, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joshua Nagler, MD located?

The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6624. Providers update this record themselves, so call before visiting.

How can I verify Joshua Nagler, MD's license?

NPPES lists Massachusetts license number 211237, 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.