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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CHARLES A. THORSEN III M.D.
NPI 1578540985
Internal Medicine in Evanston, IL

Active since December 28, 2005
909 DAVIS ST, EVANSTON, IL 60201(847) 866-3700(847) 866-3746 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Charles A. Thorsen Iii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHARLES A. THORSEN III M.D. (NPI 1578540985) is an individual internal medicine provider in Evanston, Illinois and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1578540985
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHARLES A. THORSEN IIICredential: M.D.
Location Address909 DAVIS STEvanston, IL 60201-3664
Mailing Address909 Davis StEvanston, IL 60201-3664 · (847) 866-3700 · Fax (847) 866-3746
Phone(847) 866-3700
Fax(847) 866-3746
Sole ProprietorNo
Enumeration DateDecember 28, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1578540985 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
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.
909 DAVIS ST, Evanston, IL 60201
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AFREEN NAZ PAPA MD
Internal Medicine
909 DAVIS ST
EVANSTON, IL 60201
Cook County (847) 866-3700
ERIC O FERNANDEZ MD
Family Medicine
909 DAVIS ST
EVANSTON, IL 60201
Cook County (847) 982-6710
CLAIRE PARMENTER DPT
Physical Therapist
909 DAVIS ST, SUITE 220
EVANSTON, IL 60201
Cook County (847) 733-7906
DR. MARIAM R MOURAD PH.D.
Psychologist (Clinical)
909 DAVIS ST, SUITE 160
EVANSTON, IL 60201
Cook County (847) 425-6445
JENNIFER WRIGHT BS
Physical Therapy Assistant
909 DAVIS ST, STE 220
EVANSTON, IL 60201
Cook County (847) 733-7906
DAVID BELLISARIO DPT
Physical Therapist
909 DAVIS ST, SUITE 220
EVANSTON, IL 60201
Cook County (847) 733-7906
DANIEL GIACOMO MD
Psychiatry & Neurology (Psychiatry)
909 DAVIS ST, SUITE 160
EVANSTON, IL 60201
Cook County (847) 425-6400
TEDDY HSU OT
Occupational Therapist
909 DAVIS ST, STE 220
EVANSTON, IL 60201
Cook County (847) 733-7906

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Charles Thorsen's NPI number?

The NPI number for Charles Thorsen is 1578540985. It was assigned to this individual provider in the NPPES registry on December 28, 2005.

Where is Charles Thorsen located?

Charles Thorsen practices at 909 Davis St, Evanston, IL 60201. The listed phone number is (847) 866-3700.

What is Charles Thorsen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Charles Thorsen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.