Stephen Grossman, DMD
NPI 1114930559 · Periodontics · Acton, MA
Enrolled with Medicare as Order and Referring Only - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Grossman, DMD is a Periodontics provider in Acton, MA (NPI 1114930559).
Provider details
- NPI number
- 1114930559
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- No
- License
- 14579 (MA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 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.
$51 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
- 2006-08-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Grossman's NPI number?
- Stephen Grossman's National Provider Identifier (NPI) is 1114930559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Grossman's specialty?
- Stephen Grossman is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is Stephen Grossman located?
- Stephen Grossman's practice location on file with NPPES is 77 Great Road, Acton, MA 01720.
- What is Stephen Grossman's phone number?
- The practice phone number listed in the NPPES registry for Stephen Grossman is (978) 263-1313.
- Does Stephen Grossman accept Medicare?
- Stephen Grossman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Grossman's NPI active?
- Yes — Stephen Grossman's NPI (1114930559) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.