Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

H Demitri Medical Sc

Internal Medicine Physician in Addison, IL · enumerated 2007 · authorized official Haralambos Hatzidimitriadis, President.

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

National Provider Identifier

1275729287

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Registry record

Entity type Organization (Type 2)

Legal business name H Demitri Medical Sc

Practice address 33 N Addison Rd, Addison, IL, 60101

Phone (630) 530-4144

Fax (630) 530-7404

Enumeration date Sep 24, 2007

Last updated in NPPES Jan 21, 2008

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Haralambos Hatzidimitriadis

Title President

Phone (773) 658-2300

Other identifiers

Identifier	Type	State	Issuer
01634343	Other	IL	BLUE CROSS BLUE SHIELD PI

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-01-21. Verify at npiregistry.cms.hhs.gov.

Where is H Demitri Medical Sc located?

The practice location on file with NPPES is in Addison, IL.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-21.