NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Frank A Disilvio Jr., MD

Surgery Physician in Mchenry, IL · enumerated 2019.

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

National Provider Identifier

1346809381

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Frank A Disilvio Jr.
Credential MD
Sex Male
Practice address 4309 W Medical Center Dr Ste B202, Mchenry, IL, 60050
Fax (815) 455-2789
Enumeration date Jun 12, 2019
Last updated in NPPES Oct 7, 2026

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 036180721 (IL) Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036180721 (IL) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 279846 (MA) 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

Where does Frank Disilvio practice?
The practice location on file with NPPES is in Mchenry, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Frank Disilvio?
The National Provider Identifier (NPI) for Frank Disilvio is 1346809381, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-07.