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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Harold Katz, M.D.

Dermatopathology Physician in Rockville, MD · enumerated 2006.

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

National Provider Identifier

1457306466

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Registry record

Entity type Individual (Type 1)
Name Dr. Matthew Harold Katz
Credential M.D.
Sex Male
Practice address 11510 Old Georgetown Rd, Rockville, MD, 20852
Phone (301) 881-4124
Fax (301) 881-6505
Enumeration date May 24, 2006
Last updated in NPPES Aug 5, 2008

Taxonomy & licenses

207ND0900X Dermatopathology Physician Allopathic & Osteopathic Physicians · License D45413 (MD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
816067800 Medicaid DC -

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.

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Frequently asked questions

How do I verify Matthew Katz's NPI record?
Cross-check NPI 1457306466 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1457306466 active?
Yes, as of the latest NPPES snapshot, NPI 1457306466 is active (record last updated 2008-08-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-05.