NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Hazem Sahlol

Internal Medicine Physician in Dyer, IN · enumerated 2010.

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

National Provider Identifier

1184930604

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark Hazem Sahlol
Sex Male
Practice address 24 Joliet St, Dyer, IN, 46311
Phone (219) 852-1524
Fax (219) 933-2288
Enumeration date Aug 21, 2010
Last updated in NPPES Mar 18, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036124446 (IL) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD152202 (OR) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01075458A (IN) Primary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 01075458A (IN) Secondary

Other identifiers

Identifier Type State Issuer
201292580 Medicaid IN -

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

How do I verify Mark Sahlol's NPI record?
Cross-check NPI 1184930604 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1184930604 active?
Yes, as of the latest NPPES snapshot, NPI 1184930604 is active (record last updated 2026-03-18).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-18.