David Wallace, MD, MPH
NPI 1770780835 · Critical Care Medicine (Internal Medicine) Physician · Castro Valley, CA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Wallace, MD, MPH is a Critical Care Medicine (Internal Medicine) Physician provider in Castro Valley, CA (NPI 1770780835).
Provider details
- NPI number
- 1770780835
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- MD441174 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
553 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 373 | $231 |
| Critical Care, Each Additional 30 Minutes99292 | 87 | $116 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 28 | $88 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 22 | $131 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 15 | $89 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 15 | $46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-29
- Last updated
- 2025-08-30
- Certified
- 2025-08-30
Frequently asked questions
- What is David Wallace's NPI number?
- David Wallace's National Provider Identifier (NPI) is 1770780835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Wallace's specialty?
- David Wallace is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is David Wallace located?
- David Wallace's practice location on file with NPPES is 20103 Lake Chabot Rd, Castro Valley, CA 94546-5305.
- What is David Wallace's phone number?
- The practice phone number listed in the NPPES registry for David Wallace is (510) 537-1234.
- Does David Wallace accept Medicare?
- David Wallace is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Wallace's NPI active?
- Yes — David Wallace's NPI (1770780835) is active in the NPPES registry as of the last update on 2025-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.