ALLISON J. HAHR M.D. – NPI #1083774889
Internal Medicine

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

Health Care Provider Taxonomy Code for Internal Medicine

ALLISON HAHR is a physician located in CHICAGO, IL. NPPES has assigned the NPI number 1083774889 to ALLISON HAHR on December 11, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 207RE0101X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism

The NPI profile was last updated on Apr 10, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for ALLISON HAHR below.

NPI Profile for
ALLISON J. HAHR

NPI Number
1083774889
Enumeration Date

(more than 19 years ago)
Entity Type
Type-1  Individual (Female)
Legal Name
ALLISON J. HAHR
Credentials
M.D.
Primary location
676 N SAINT CLAIR ST STE 701
CHICAGO, IL 60611-2996
Phone: (312) 695-7970 Fax: (312) 695-4433
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Apr 10, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RE0101X
- Internal Medicine / Endocrinology, Diabetes & Metabolism (Primary)		 IL 036-113429

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
UNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE - Graduated 2002
Offers Telehealth Services
Yes - Telehealth services allows you to talk to your health care provider using audio/video communications, such as Zoom, without actually going in to the doctor's office
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
ALLISON HAHR is affiliated with the following medical group(s):
  • HOSPITAL
    • CENTRAL DUPAGE HOSPITAL
      25 NORTH WINFIELD ROAD
      WINFIELD, IL 60190
    • NORTHSHORE UNIVERSITY HEALTHSYSTEM - EVANSTON HOSPITAL
      2650 RIDGE AVE
      EVANSTON, IL 60201
    • NORTHWESTERN LAKE FOREST HOSPITAL
      1000 N WESTMORELAND ROAD
      LAKE FOREST, IL 60045
    • NORTHWESTERN MEMORIAL HOSPITAL
      251 E HURON ST
      CHICAGO, IL 60611
    • PALOS COMMUNITY HOSPITAL
      12251 SOUTH 80TH AVENUE
      PALOS HEIGHTS, IL 60463

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