Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Howard Roy Sonderling, M.D.

Specialist in Boca Raton, FL · enumerated 2006.

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

National Provider Identifier

1942239660

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Registry record

Entity type Individual (Type 1)

Name Howard Roy Sonderling

Credential M.D.

Sex Male

Practice address Boca Raton, FL, 33431

Phone (561) 208-2121

Fax (561) 393-1729

Enumeration date Jul 3, 2006

Last updated in NPPES Mar 20, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License ME0048317 (FL) Primary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 2026-00945 (NC) 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
049263900	Medicaid	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

What is the NPI number for Howard Sonderling?

The National Provider Identifier (NPI) for Howard Sonderling is 1942239660, a Type 1 (individual) record in the CMS NPPES registry.

Where does Howard Sonderling practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-20.