NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc Slonimski, MD

Pain Medicine (Physical Medicine & Rehabilitation) Physician in West Palm Beach, FL · enumerated 2006.

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

National Provider Identifier

1891700522

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Marc Slonimski
Credential MD
Sex Male
Practice address 2051 45th St, Suite108, West Palm Beach, FL, 33407
Fax (561) 845-9750
Enumeration date Jul 30, 2006
Last updated in NPPES Dec 29, 2011

Taxonomy & licenses

2081P2900X Pain Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License ME94930 (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
MD9132 Medicaid AK -

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 Marc Slonimski?
The National Provider Identifier (NPI) for Marc Slonimski is 1891700522, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marc Slonimski practice?
The practice location on file with NPPES is in West Palm Beach, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-29.