DIANE L ALTKORN
NPI 1174684906
Internal Medicine in Chicago, IL

Active since December 13, 2006PECOS Enrolled
5841 S MARYLAND AVE, CHICAGO, IL 60637(888) 824-0200 Get Directions Write a Review

NPPES record last updated: May 19, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 19, 2022, Apr 18, 2022, Mar 8, 2022 (3 updates tracked since 2022).

About Diane L Altkorn NPPES

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

DIANE L ALTKORN (NPI 1174684906) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036067161) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174684906
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDIANE L ALTKORN
Location Address5841 S MARYLAND AVEChicago, IL 60637-1443
Mailing Address150 Harvester Dr, Suite 300Burr Ridge, IL 60527-5919
Sole ProprietorNo
Enumeration DateDecember 13, 2006
Last NPPES UpdateMay 19, 20223 updates tracked since enumeration
✔ NPI 1174684906 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036067161
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.
5841 S MARYLAND AVE, Chicago, IL 60637

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane L Altkorn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Diane Altkorn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$67.60 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$32.37 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Radiology (Diagnostic Radiology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Neurological Surgery
5841 S MARYLAND AVE
CHICAGO, IL 60637
Pathology (Hematology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637

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 Diane Altkorn's NPI number?

The NPI number for Diane Altkorn is 1174684906. It was assigned to this individual provider in the NPPES registry on December 13, 2006.

Where is Diane Altkorn located?

Diane Altkorn practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (888) 824-0200.

What is Diane Altkorn's specialty?

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

Is Diane Altkorn enrolled in Medicare?

Yes. Diane Altkorn is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Altkorn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Altkorn reassigns Medicare benefits to The University Of Chicago Medical Center (Chicago, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diane Altkorn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Diane Altkorn was last updated on May 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.