NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy Mark, MD

Internal Medicine Physician in West Palm Beach, FL · enumerated 2006.

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

National Provider Identifier

1588725006

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Timothy Mark
Credential MD
Sex Male
Practice address 2801 N Flagler Dr, West Palm Beach, FL, 33407
Fax (561) 659-7423
Enumeration date Dec 12, 2006
Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ME77634 (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
ME77634 Other FL STATE ID
591199726 Other FL TAX ID
374191500 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 Timothy Mark?
The National Provider Identifier (NPI) for Timothy Mark is 1588725006, a Type 1 (individual) record in the CMS NPPES registry.
Where does Timothy Mark 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 2023-03-07.