Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arthur J Matzkowitz, M.D.

Therapeutic Radiology Physician in Trinity, FL · enumerated 2006 · practices at Florida Cancer Specialists & Research Institute, LLC.

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

National Provider Identifier

1588636831

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Registry record

Entity type Individual (Type 1)

Name Dr. Arthur J Matzkowitz

Credential M.D.

Sex Male

Practice address 9320 State Road 54, Trinity, FL, 34655

Phone (727) 493-2513

Fax (877) 917-2336

Enumeration date Feb 2, 2006

Last updated in NPPES Nov 15, 2023

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License ME57309 (FL) Secondary

2085R0203X Therapeutic Radiology Physician Allopathic & Osteopathic Physicians · License ME57309 (FL) 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
053891400	Medicaid	FL	-
P00468399	Other	FL	RAILROAD MEDICARE

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

Where does Arthur Matzkowitz practice?

The practice location on file with NPPES is in Trinity, FL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Arthur Matzkowitz?

The National Provider Identifier (NPI) for Arthur Matzkowitz is 1588636831, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-15.