NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Maryum Merchant, M.D.

Pulmonary Disease Physician in Westlake Village, CA · enumerated 2007 · practices at John A Lee MD A Medical Corporation.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902024532

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Maryum Merchant
Credential M.D.
Sex Female
Practice address 1250 La Venta Dr Ste 207, Westlake Village, CA, 91361
Phone (805) 494-6920
Fax (805) 494-6922
Enumeration date Apr 20, 2007
Last updated in NPPES Sep 4, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A96675 (CA) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License A96675 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Maryum Merchant's NPI record?
Cross-check NPI 1902024532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1902024532 active?
Yes, as of the latest NPPES snapshot, NPI 1902024532 is active (record last updated 2019-09-04).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-04.