Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Czyzewski, M.D.

Nephrology Physician in Edison, NJ · enumerated 2006.

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

National Provider Identifier

1558304782

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Czyzewski

Credential M.D.

Sex Male

Practice address 34-36 Progress St, Suite A-7, Edison, NJ, 08820

Phone (908) 769-1440

Fax (908) 769-0945

Enumeration date Jun 14, 2006

Last updated in NPPES Jan 14, 2011

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 25MA06769000 (NJ) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 25MA06769000 (NJ) 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

What specialty is Robert Czyzewski?

Robert Czyzewski is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-14.