Individual provider · NPI-1

Gary Altwerger, M.D.

Obstetrics & Gynecology, Gynecologic Oncology · Chicago, IL

NPI number1407114630

StatusActive

Last updated in NPPESJan 15, 2026

Details

NPI: 1407114630
Entity type: Individual (NPI-1)
Name: Gary Altwerger
Credential: M.D.
Sex: Male
Sole proprietor: Yes
Enumeration date: Apr 25, 2012
Certification date: Jan 15, 2026
Last updated: Jan 15, 2026

Taxonomy and licenses

Taxonomy code	Description	License	State	Primary
207VX0201X	Obstetrics & Gynecology, Gynecologic Oncology	036176993	IL	Yes

Practice location

5841 S Maryland Ave
Chicago, IL 60637-1443

Phone 888-824-0200

Mailing address

150 Harvester Dr Ste 300
Burr Ridge, IL 60527-5965

Other practice locations

333 Cedar Street
Fmb 328
New Haven, CT 06510-3220

Phone 203-785-7385 · Fax 203-785-7134

880 W. Central Rd.
Suite 5000
Arlington Heights, IL 60005-2355

Phone 847-618-3800 · Fax 847-618-3809

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