Neil Grossman, MD
NPI 1770527715 · Pediatric Hematology & Oncology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Neil Grossman, MD is a Pediatric Hematology & Oncology Physician provider in Boston, MA (NPI 1770527715).
Provider details
- NPI number
- 1770527715
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 238502 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2024-04-04
- Certified
- 2024-04-02
Frequently asked questions
- What is Neil Grossman's NPI number?
- Neil Grossman's National Provider Identifier (NPI) is 1770527715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Neil Grossman's specialty?
- Neil Grossman is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Neil Grossman located?
- Neil Grossman's practice location on file with NPPES is 801 Massachusetts Ave., Boston, MA 02118.
- What is Neil Grossman's phone number?
- The practice phone number listed in the NPPES registry for Neil Grossman is (617) 414-4841.
- Does Neil Grossman accept Medicare?
- Neil Grossman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Neil Grossman's NPI active?
- Yes — Neil Grossman's NPI (1770527715) is active in the NPPES registry as of the last update on 2024-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.