Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mardeen Salah Karim, MD

Dermatology Physician in Lutherville, MD · enumerated 2022.

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

National Provider Identifier

1366191256

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Registry record

Entity type Individual (Type 1)

Name Mardeen Salah Karim

Credential MD

Sex Female

Practice address 1447 York Rd Ste 301, Lutherville, MD, 21093

Phone (410) 252-9090

Enumeration date Mar 20, 2022

Last updated in NPPES Jul 21, 2026

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License D0105771 (MD) 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 Mardeen Karim's NPI record?

Cross-check NPI 1366191256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366191256 active?

Yes, as of the latest NPPES snapshot, NPI 1366191256 is active (record last updated 2026-07-21).

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Amy Huang Dermatology Physician · Lutherville Timonium, MD NPI 1275078446

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-21.