Maryum Merchant, M.D.
Pulmonary Disease Physician · Westlake Village, CA
Maryum Merchant, M.D. is a pulmonary disease physician with a practice address in Westlake Village, California, and NPI 1902024532, issued on Apr 20, 2007. Check the license (California A96675, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maryum Merchant
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- A96675 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 LA Venta Dr Ste 207, Westlake Village, CA 91361
- Phone
- (805) 494-6920
- Enumerated
- Apr 20, 2007
- Record last updated
- Sep 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (805) 494-6922
- Medicare enrollment
- Enrolled (PECOS I20071119000329); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 1250 LA Venta Dr Ste 207
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shyam Kolangara, MDGeriatric Medicine (Internal Medicine) Physician1497138499
- Anitha Srinivasa, M.D.Hospitalist Physician1306876149
Verify Maryum Merchant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average pulmonary disease physician in 2024
3,313 Medicare Part D claims for 587 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Trelegy Ellipta560 claims
- Albuterol Sulfate Hfa296 claims
- Montelukast Sodium228 claims
- Breo Ellipta184 claims
- Prednisone170 claims
- Azithromycin143 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,688.62
3 payments; by number, the most common kind was education; the largest payer was Genzyme Corporation. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maryum Merchant among 1,443 pulmonary disease physician records in California
Maryum Merchant, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 40% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2002 · median 2002 among the 1,061 with a school on file
- Record last updated2019 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Westlake Village → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Jonathan Chan, M.D.Thousand Oaks, CA 913611982016929
- Miguel Gonzalez, M.D.Thousand Oaks, CA 913611902808959
- Sherif Henein, M.D.Lake Sherwood, CA 913611225031784
- Tamana AhmadiThousand Oaks, CA 913601427437730
- Lawrence Baker, M.D.Thousand Oaks, CA 913601922000983
- Paul Block, M.D.Thousand Oaks, CA 913601598767550
- Ali Farrokh, M.D.Thousand Oaks, CA 913601164750170
- Andres Giron, M.D.Thousand Oaks, CA 913601922027630
Common questions
What is Maryum Merchant, M.D.'s NPI number?
Maryum Merchant, M.D.'s National Provider Identifier (NPI) is 1902024532, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maryum Merchant, M.D. located?
The NPPES record lists a practice address at 1250 LA Venta Dr Ste 207, Westlake Village, CA, 91361. Phone: (805) 494-6920. Providers update this record themselves, so call before visiting.
How can I verify Maryum Merchant, M.D.'s license?
NPPES lists California license number A96675, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maryum Merchant, M.D. prescribe under Medicare Part D?
In 2024, Maryum Merchant, M.D. had 3,313 Medicare Part D claims for 587 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Maryum Merchant, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.