David Stone, MD
NPI 1114152857 · Family Medicine Physician · Martinez, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Stone, MD is a Family Medicine Physician provider in Martinez, CA (NPI 1114152857).
Provider details
- NPI number
- 1114152857
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G56663 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 168 | 50 |
| Etanerceptbrand: Enbrel Sureclick | 153 | 22 |
| Prednisone | 139 | 35 |
| Hydroxychloroquine Sulfate | 70 | 23 |
| Adalimumabbrand: Humira | 65 | — |
| Etanerceptbrand: Enbrel | 38 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$231 across 2 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
- 2009-05-26
- Last updated
- 2009-05-26
Frequently asked questions
- What is David Stone's NPI number?
- David Stone's National Provider Identifier (NPI) is 1114152857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Stone's specialty?
- David Stone is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Stone located?
- David Stone's practice location on file with NPPES is 2500 Alhambra Ave, Martinez, CA 94553-3156.
- What is David Stone's phone number?
- The practice phone number listed in the NPPES registry for David Stone is (925) 370-5110.
- Does David Stone accept Medicare?
- David Stone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Stone's NPI active?
- Yes — David Stone's NPI (1114152857) is active in the NPPES registry as of the last update on 2009-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.