Physician Profile
Unclaimed ProfileAbout WALLACE
David John Wallace, MD, MPH practises critical care (intensivists) in Castro Valley, CA. David is also listed as specialising in critical care medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Wallace specialise in?
Dr. Wallace is a critical care (intensivists) in Castro Valley, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CRITICAL CARE (INTENSIVISTS)”.
NPI registry
Where is Dr. Wallace located?
Dr. Wallace is listed at 20103 LAKE CHABOT RD, Castro Valley, CA 94546. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Wallace's phone number?
The number on file is (510) 537-1234. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Wallace?
Dr. Wallace's National Provider Identifier is 1770780835. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Wallace go to medical school?
Dr. Wallace attended Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Wallace have?
Dr. Wallace has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Wallace do most often?
According to Medicare billing data, Dr. Wallace performs procedures including insertion of artery tube for blood sampling or infusion through skin, insertion of non-tunneled central venous tube for infusion and emergent insertion of breathing tube into windpipe using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Wallace's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Wallace. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (510) 537-1234
- Email not available
Practice Locations
20103 LAKE CHABOT RD
Castro Valley, CA 94546
Procedures Most Often Billed to Medicare
553 services · 318 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
15 |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
15 |
| Emergent insertion of breathing tube into windpipe using an endoscope | Procedure | 31500 |
13 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
373 |
| Critical care, each additional 30 minutes | Office visit | 99292 |
87 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
28 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
22 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other critical cares in Castro Valley 2
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2004 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.