Maryum Merchant, M.D.
NPI 1902024532 · Pulmonary Disease Physician · Westlake Village, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryum Merchant, M.D. is a Pulmonary Disease Physician provider in Westlake Village, CA (NPI 1902024532).
Provider details
- NPI number
- 1902024532
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A96675 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3,029 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 | 927 | $137 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 841 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 205 | $189 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 194 | $80 |
| Critical Care, First 30-74 Minutes99291 | 162 | $218 |
| Test to Examine How Well the Lungs Exchange Gases |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 560 | 166 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 296 | 154 |
| Montelukast Sodium | 228 | 84 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 184 | 52 |
| Prednisone | 170 | 109 |
| Azithromycin | 143 | 79 |
| Azelastine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,689 across 3 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
- 2007-04-20
- Last updated
- 2019-09-04
Frequently asked questions
- What is Maryum Merchant's NPI number?
- Maryum Merchant's National Provider Identifier (NPI) is 1902024532, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryum Merchant's specialty?
- Maryum Merchant is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Maryum Merchant located?
- Maryum Merchant's practice location on file with NPPES is 1250 La Venta Dr Ste 207, Westlake Village, CA 91361-3766.
- What is Maryum Merchant's phone number?
- The practice phone number listed in the NPPES registry for Maryum Merchant is (805) 494-6920.
- Does Maryum Merchant accept Medicare?
- Maryum Merchant is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maryum Merchant's NPI active?
- Yes — Maryum Merchant's NPI (1902024532) is active in the NPPES registry as of the last update on 2019-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.