YANNIS S. LAFAZANOS DO – NPI #1538863790
Internal Medicine

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

YANNIS LAFAZANOS is a physician located in NILES, IL. NPPES has assigned the NPI number 1538863790 to YANNIS LAFAZANOS on March 29, 2023. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RG0100X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Gastroenterology

The NPI profile was last updated on Apr 06, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for YANNIS LAFAZANOS below.

NPI Profile for
YANNIS S. LAFAZANOS

NPI Number
1538863790
Enumeration Date

(more than 3 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
YANNIS S. LAFAZANOS
Credentials
DO
Primary location
7900 N MILWAUKEE AVE STE 19
NILES, IL 60714-3239
Phone: (847) 318-9595 Fax: (847) 318-9599
1 Other location(s):
1775 Ballard Rd
Park Ridge, IL 60068-1005
Phone: (847) 318-9340
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Apr 06, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RG0100X
- Internal Medicine / Gastroenterology (Primary)
IL 036.177328
207R00000X
- Internal Medicine
IL 125.081753

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.