Joseph Grossman, M.D.
NPI 1194087973 · Hematology & Oncology Physician · Boston, MA
Joseph Grossman, M.D. is a Hematology & Oncology Physician provider in Boston, MA (NPI 1194087973).
Provider details
- NPI number
- 1194087973
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 252763 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$28 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-08
- Last updated
- 2017-05-22
Frequently asked questions
- What is Joseph Grossman's NPI number?
- Joseph Grossman's National Provider Identifier (NPI) is 1194087973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Grossman's specialty?
- Joseph Grossman is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Grossman located?
- Joseph Grossman's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is Joseph Grossman's phone number?
- The practice phone number listed in the NPPES registry for Joseph Grossman is (617) 667-7000.
- Is Joseph Grossman's NPI active?
- Yes — Joseph Grossman's NPI (1194087973) is active in the NPPES registry as of the last update on 2017-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.