Warren Davis, M.D.
NPI 1235422676 · Anesthesiology Physician · Fullerton, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Davis, M.D. is a Anesthesiology Physician provider in Fullerton, CA (NPI 1235422676).
Provider details
- NPI number
- 1235422676
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A126164 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
145 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 26 | $183 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 22 | $64 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 20 | $353 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 15 | $71 |
| Anesthesia for Total Hip Replacement01214 | 14 | $354 |
| Anesthesia for Other Procedure Or Exam of Knee Joint Using an Endoscope01400 | 13 | $182 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-18
- Last updated
- 2015-07-22
Frequently asked questions
- What is Warren Davis's NPI number?
- Warren Davis's National Provider Identifier (NPI) is 1235422676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Davis's specialty?
- Warren Davis is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Davis located?
- Warren Davis's practice location on file with NPPES is 101 E Valencia Mesa Dr, Fullerton, CA 92835-3809.
- What is Warren Davis's phone number?
- The practice phone number listed in the NPPES registry for Warren Davis is (714) 871-3280.
- Does Warren Davis accept Medicare?
- Warren Davis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Davis's NPI active?
- Yes — Warren Davis's NPI (1235422676) is active in the NPPES registry as of the last update on 2015-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.