DAVID HOWARD STONE MD
NPI 1114152857
Family Medicine in Martinez, CA
About David Howard Stone Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID HOWARD STONE MD (NPI 1114152857) is an individual family medicine provider in Martinez, California, licensed in California (G56663) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
David Howard Stone Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show David Stone reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 637 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94553 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARTINEZ, CA 94553
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Stone's NPI number?
The NPI number for David Stone is 1114152857. It was assigned to this individual provider in the NPPES registry on May 26, 2009.
Where is David Stone located?
David Stone practices at 2500 Alhambra Ave, Martinez, CA 94553. The listed phone number is (925) 370-5110.
What is David Stone's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is David Stone enrolled in Medicare?
Yes. David Stone is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for David Stone's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Stone reassigns Medicare benefits to University Of California Sfgh Medical Group (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Stone's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for David Stone was last updated on May 26, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.