Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1336126176 Individual Practitioner Male Practitioner

Dr. John Alexander , MD

Internal Medicine • Evanston, IL

Professional Overview & Biography Verified Profile Summary

Dr. John Alexander, MD is a registered healthcare professional specializing in Internal Medicine in Evanston, IL. Practice services are available at 633 EMERSON ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

633 Emerson St

Evanston, IL 602080844

Telephone 8474918100
Fax 8474918100
Associated Practice Facility / Clinic
🏢 Northwestern University Facility NPI 1447557723

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Evanston, IL

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 18.5 Yrs
State Avg: 28.9 Yrs
Regional Practice Density
180 Specialists

Practicing in Evanston, IL (7544 Statewide)

Telehealth Adoption Rate
14.4% 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

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Practice Associates & Co-Workers

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

14 Associated Practitioners
Dr. Alysia Green , MD

Family Medicine - Sports Medicine

NPI 1013124296

Doctor of Medicine (M.D.)

NPI 1134216914

Doctor of Medicine (M.D.)

Dr. Lori Schwarcz , MD

Internal Medicine

NPI 1184710246

Doctor of Medicine (M.D.)

Dr. Hyman Ng , MD

Internal Medicine

NPI 1295829422

Doctor of Medicine (M.D.)

Kathleen Parker

Nurse Practitioner

NPI 1356433239
Dr. Joanne Connolly , MD

Internal Medicine

NPI 1366544249

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 633 EMERSON ST, EVANSTON, IL 602080844 (Tel: 8474918100)

📍
Updated Business Mailing Address July 08, 2007

Registered at 733 MACLEAN AVE, KENILWORTH, IL 600431033 (Tel: 8472567787)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as JOHN ALEXANDER, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine

🟢
Initial NPI Registration & Enumeration December 22, 2005

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: 1336126176
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 22, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

733 Maclean Ave

Kenilworth, IL 600431033

Phone: 8472567787

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.