Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1972496925 Individual Practitioner Male Practitioner

Dr. Eliezer Diaz , DO

General Practice • Chicago, IL

Professional Overview & Biography Verified Profile Summary

Dr. Eliezer Diaz, DO is a registered healthcare professional specializing in General Practice in Chicago, IL. Practice services are available at 5145 N CALIFORNIA AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

5145 N California Ave

Chicago, IL 606253661

Telephone 7739893808
Associated Practice Facility / Clinic
🏢 Swedish Covenant Health Facility NPI 1831151257

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Chicago, IL

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 27.3 Yrs
State Avg: 30.9 Yrs
Regional Practice Density
109 Specialists

Practicing in Chicago, IL (355 Statewide)

Telehealth Adoption Rate
2.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-12-16
General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License IL 125.086198

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

23 Associated Practitioners
NPI 1114580115

Doctor of Osteopathic Medicine (D.O.)

NPI 1114595493

Doctor of Osteopathic Medicine (D.O.)

Dr. Connor Leuck , DO

Student in an Organized Health Care Education/Training Program

NPI 1124723622

Doctor of Osteopathic Medicine (D.O.)

Dr. Fizza Mahmood , MD

Student in an Organized Health Care Education/Training Program

NPI 1124911425

Doctor of Medicine (M.D.)

NPI 1154617421

Doctor of Medicine (M.D.)

Dr. Rabab Nazar , DPM

Podiatrist - Foot & Ankle Surgery

NPI 1275965956

Doctor of Podiatric Medicine

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 16, 2025

General Practice (License #125.086198 in IL)

NPI Profile Active May 29, 2025

NPI status registered as active in NPPES database

📍
Updated Practice Location May 29, 2025

Registered at 5145 N CALIFORNIA AVE, CHICAGO, IL 606253661 (Tel: 7739893808)

📍
Updated Business Mailing Address May 29, 2025

Registered at 5145 N CALIFORNIA AVE, CHICAGO, IL 606253661 (Tel: 7739893808)

👤
Provider Name / Credentials Updated May 29, 2025

Recorded as ELIEZER DIAZ, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 29, 2025

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration May 29, 2025

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1972496925
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 29, 2025
Last Update: December 16, 2025
Sole Proprietor: No

Mailing Address

5145 N California Ave

Chicago, IL 606253661

Phone: 7739893808

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.