DR. DAVID JOHN WALLACE MD, MPH
NPI 1770780835
Internal Medicine - Critical Care Medicine in Castro Valley, CA
About Dr. David John Wallace Md, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID JOHN WALLACE MD, MPH (NPI 1770780835) is an individual critical care medicine provider in Castro Valley, California, licensed in California (C170028) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. David John Wallace Md, Mph is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94546 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.
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 Wallace's NPI number?
The NPI number for David Wallace is 1770780835. It was assigned to this individual provider in the NPPES registry on June 29, 2007.
Where is David Wallace located?
David Wallace practices at 20103 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 537-1234.
What is David Wallace's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is David Wallace enrolled in Medicare?
Yes. David Wallace is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does David Wallace accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and Oscar Insurance Company list David Wallace as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for David Wallace was last updated on August 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
