Neil J. Grossman, MD
Pediatric Hematology & Oncology Physician · Boston, MA
Neil J. Grossman, MD is a pediatric hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1770527715, issued on Jun 16, 2006. Check the license (Massachusetts 238502, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Neil J. Grossman
- Credential
- MD
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License number
- 238502 MA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Massachusetts Ave., Boston, MA 02118
- Phone
- (617) 414-4841
- Enumerated
- Jun 16, 2006
- Record last updated
- Apr 4, 2024
- Medicaid ID
- 110081553A MA
- Entity
- Type 1 · individual
8 nearest pediatric hematology & oncology physician records → All 197 in Massachusetts → Look up another NPI →
Also registered at 801 Massachusetts Ave.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Amgott, RN MSN CPNPPediatric Nurse Practitioner1417171752
- Samantha Betti, RN, PNPRegistered Nurse1518311018
- Katelin Blackburn, MDPediatrics Physician1316441009
- Sarah Canale, M.D.Developmental - Behavioral Pediatrics Physician1457650103
- Audrey Christiansen, M.DPediatrics Physician1265852149
- Emily Cross, MDPediatrics Physician1447612288
Verify Neil J. Grossman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 238502Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average pediatric hematology & oncology physician in 2024
11 Medicare Part D claims, against an average of 94 among the 300 providers of this specialty who prescribed in Part D.
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.
Neil J. Grossman among 197 pediatric hematology & oncology physician records in Massachusetts
Neil J. Grossman, MD is one of 197 pediatric hematology & oncology physician records with a practice address in Massachusetts. 42% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 58% newer
- In a Medicare fileYes · 42% of these records are
- In the CMS Doctors and Clinicians fileNo · 28% of these records are
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Hematology & Oncology Physician providers in Massachusetts
There are 197 pediatric hematology & oncology physician records in Massachusetts.
All 197 in Massachusetts → Every provider in Boston → Pediatric Hematology & Oncology Physician nationwide →
The 8 pediatric hematology & oncology physician records with the nearest ZIP codes
- Caitlin Neri, MDBoston, MA 021181649324062
- Susan Perrine, MDBoston, MA 021181427035302
- Amy Sobota, MDBoston, MA 021181679646665
- Alessandra BiffiBoston, MA 021151659757326
- Kevin Campbell, MDBoston, MA 021151326433236
- Hannah Deppe, PA-CBoston, MA 021151447170964
- Caitlin Fogarty, MD/PHDBoston, MA 021151265961999
- Emily Harris, MDBoston, MA 021151437618592
Common questions
What is Neil J. Grossman, MD's NPI number?
Neil J. Grossman, MD's National Provider Identifier (NPI) is 1770527715, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Neil J. Grossman, MD located?
The NPPES record lists a practice address at 801 Massachusetts Ave., Boston, MA, 02118. Phone: (617) 414-4841. Providers update this record themselves, so call before visiting.
How can I verify Neil J. Grossman, MD's license?
NPPES lists Massachusetts license number 238502, 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 Neil J. Grossman, MD prescribe under Medicare Part D?
In 2024, Neil J. Grossman, MD had 11 Medicare Part D claims; the average among pediatric hematology & oncology physician prescribers was 94. 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.