Sergio Neira, M.D.
NPI 1043373194 · Internal Medicine Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sergio Neira, M.D. is a Internal Medicine Physician provider in Oxnard, CA (NPI 1043373194).
Provider details
- NPI number
- 1043373194
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A38228 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,512 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 330 | $143 |
| Assessment of Emotional Or Behavioral Problems96127 | 316 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 245 | $102 |
| Hemoglobin A1c Level, By Device for Home Use83037 | 187 | $9 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 86 | $63 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 156 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,201 | 370 |
| Metformin Hcl | 771 | 225 |
| Amlodipine Besylate | 566 | 162 |
| Levothyroxine Sodium | 395 | 107 |
| Tamsulosin Hcl | 317 | 96 |
| Omeprazole | 317 | 105 |
| Alendronate Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,395 across 106 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sergio Neira's NPI number?
- Sergio Neira's National Provider Identifier (NPI) is 1043373194, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sergio Neira's specialty?
- Sergio Neira is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sergio Neira located?
- Sergio Neira's practice location on file with NPPES is 1901 Outlet Center Dr Ste 200, Oxnard, CA 93036-0666.
- What is Sergio Neira's phone number?
- The practice phone number listed in the NPPES registry for Sergio Neira is (805) 981-8300.
- Does Sergio Neira accept Medicare?
- Sergio Neira is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sergio Neira's NPI active?
- Yes — Sergio Neira's NPI (1043373194) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.