Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Edgar Sonneborn, MD

Internal Medicine Physician in Boca Raton, FL · enumerated 2006.

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

National Provider Identifier

1033189337

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Registry record

Entity type Individual (Type 1)

Name Robert Edgar Sonneborn

Credential MD

Sex Male

Practice address 1905 Clint Moore Rd, Suite 201, Boca Raton, FL, 33496

Phone (561) 994-5454

Enumeration date Jan 26, 2006

Last updated in NPPES May 14, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ME24573 (FL) Primary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License ME24573 (FL) Secondary

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
P00413516	Other	-	RAILROAD MEDICARE
71942	Other	FL	BCBS OF FL

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

Is NPI 1033189337 active?

Yes, as of the latest NPPES snapshot, NPI 1033189337 is active (record last updated 2008-05-14).

How do I verify Robert Sonneborn's NPI record?

Cross-check NPI 1033189337 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-14.