Darren Maehara, M.D.
NPI 1700145265 · Pulmonary Disease Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Maehara, M.D. is a Pulmonary Disease Physician provider in Oxnard, CA (NPI 1700145265).
Provider details
- NPI number
- 1700145265
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A128872 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,981 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 403 | $127 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 351 | $145 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 304 | $85 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 296 | $119 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 123 | $185 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 165 | 57 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 137 | 38 |
| Montelukast Sodium | 63 | 25 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 51 | 15 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 51 | 20 |
| Prednisone | 51 | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,694 across 14 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
Additional practice locations (1)
- 1200 N State StCt-A7dLos Angeles, CA 90033-1029Phone: (323) 226-7556Fax: (323) 226-2657
Registry dates
- Enumerated
- 2012-05-03
- Last updated
- 2018-09-18
Frequently asked questions
- What is Darren Maehara's NPI number?
- Darren Maehara's National Provider Identifier (NPI) is 1700145265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Maehara's specialty?
- Darren Maehara is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Maehara located?
- Darren Maehara's practice location on file with NPPES is 1910 Outlet Center Dr, Oxnard, CA 93036-0677.
- What is Darren Maehara's phone number?
- The practice phone number listed in the NPPES registry for Darren Maehara is (805) 485-2400.
- Does Darren Maehara accept Medicare?
- Darren Maehara is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Maehara's NPI active?
- Yes — Darren Maehara's NPI (1700145265) is active in the NPPES registry as of the last update on 2018-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.