NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Muhammad Adil Sheikh, M.D.

Interventional Cardiology Physician in O Fallon, IL · enumerated 2015.

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

National Provider Identifier

1194107524

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Muhammad Adil Sheikh
Credential M.D.
Sex Male
Practice address 3 Saint Elizabeth Blvd Ste 1800, O Fallon, IL, 62269
Fax (618) 233-5195
Enumeration date Jun 22, 2015
Last updated in NPPES Mar 23, 2026

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 036156122 (IL) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301107415 (MI) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036156122 (IL) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 specialty is Muhammad Sheikh?
Muhammad Sheikh is registered in NPPES with the primary taxonomy of Interventional Cardiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-23.