Nicholas James Maselli, MD
Emergency Medicine Physician · Chestnut Hill, MA
Nicholas James Maselli, MD is an emergency medicine physician with a practice address in Chestnut Hill, Massachusetts, and NPI 1760758924, issued on Mar 31, 2012. Check the license (Massachusetts 265868, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Nicholas James Maselli
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 265868 MA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Boylston St Ste 1, Chestnut Hill, MA 02467
- Phone
- (617) 278-8500
- Enumerated
- Mar 31, 2012
- Record last updated
- Feb 24, 2023
- Medicare enrollment
- Enrolled (PECOS I20160628000186); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2012
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Verify Nicholas James Maselli in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 265868Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
721 Medicare Part D claims for 517 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone105 claims
- Azithromycin84 claims
- Amoxicillin-Clavulanate Potass79 claims
- Cephalexin56 claims
- Mupirocin45 claims
- Doxycycline Hyclate32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 3 group practices
- Beth Israel Deaconess Medical Center IncBoston, MA
- Bid-Milton Physician Associates IncMilton, MA
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas James Maselli among 1,829 emergency medicine physician records in Massachusetts
Nicholas James Maselli, MD is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 62% of them.
- NPI issued2012 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2011 among the 1,200 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Massachusetts
There are 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Chestnut Hill → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Carolina Veronese, M.D.Chestnut Hill, MA 024671760802664
- Lynanne Ballelli Morganstern, M.D.Newton, MA 024661386750248
- Andrew Ames, MDNewton, MA 024621376507723
- Frank Carrano, MDNewton, MA 024621659332609
- David Hark, M.D.Newton, MA 024621194119669
- Mark Lemons, MD FACEPNewton, MA 024621831159458
- Vincent Liao, MDNewton, MA 024621912327735
- Benjamin LinNewton, MA 024621568040467
Common questions
What is Nicholas James Maselli, MD's NPI number?
Nicholas James Maselli, MD's National Provider Identifier (NPI) is 1760758924, issued on Mar 31, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas James Maselli, MD located?
The NPPES record lists a practice address at 200 Boylston St Ste 1, Chestnut Hill, MA, 02467. Phone: (617) 278-8500. Providers update this record themselves, so call before visiting.
How can I verify Nicholas James Maselli, MD's license?
NPPES lists Massachusetts license number 265868, 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.
How much does Nicholas James Maselli, MD prescribe under Medicare Part D?
In 2024, Nicholas James Maselli, MD had 721 Medicare Part D claims for 517 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.