Darius Filsoof, M.D.
NPI 1801250584 · Pulmonary Disease Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darius Filsoof, M.D. is a Pulmonary Disease Physician provider in Santa Monica, CA (NPI 1801250584).
Provider details
- NPI number
- 1801250584
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A150985 (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
10 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
355 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 | 59 | $94 |
| Critical Care, First 30-74 Minutes99291 | 45 | $203 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 43 | $139 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 42 | $175 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 41 | $113 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
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 | 133 | 66 |
| Fluticasone Propionate | 108 | 69 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 98 | 28 |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 50 | 23 |
| Budesonide/Glycopyr/Formoterolbrand: Breztri Aerosphere | 34 | 15 |
| Prednisone | 34 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32,121 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
Registry dates
- Enumerated
- 2016-04-08
- Last updated
- 2022-06-29
- Certified
- 2022-06-29
Frequently asked questions
- What is Darius Filsoof's NPI number?
- Darius Filsoof's National Provider Identifier (NPI) is 1801250584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darius Filsoof's specialty?
- Darius Filsoof is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Darius Filsoof located?
- Darius Filsoof's practice location on file with NPPES is 1223 16th St Ste 3400, Santa Monica, CA 90404-1279.
- What is Darius Filsoof's phone number?
- The practice phone number listed in the NPPES registry for Darius Filsoof is (310) 449-0939.
- Does Darius Filsoof accept Medicare?
- Darius Filsoof is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darius Filsoof's NPI active?
- Yes — Darius Filsoof's NPI (1801250584) is active in the NPPES registry as of the last update on 2022-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.