Grant Simpson, DMD
NPI 1942756101 · General Practice Dentistry · San Diego, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grant Simpson, DMD is a General Practice Dentistry provider in San Diego, CA (NPI 1942756101).
Provider details
- NPI number
- 1942756101
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- No
- License
- DDS100339 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 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.
$137 across 3 records (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
- 2016-08-28
- Last updated
- 2016-08-28
Frequently asked questions
- What is Grant Simpson's NPI number?
- Grant Simpson's National Provider Identifier (NPI) is 1942756101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Simpson's specialty?
- Grant Simpson is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Grant Simpson located?
- Grant Simpson's practice location on file with NPPES is 2130 4th Ave, San Diego, CA 92101-2110.
- What is Grant Simpson's phone number?
- The practice phone number listed in the NPPES registry for Grant Simpson is (619) 298-9383.
- Does Grant Simpson accept Medicare?
- Grant Simpson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grant Simpson's NPI active?
- Yes — Grant Simpson's NPI (1942756101) is active in the NPPES registry as of the last update on 2016-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.