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LEONARD M KLEIN
NPI 1255328878
Internal Medicine - Hematology & Oncology in Niles, IL

Active since September 29, 2005PECOS Enrolled
8915 W GOLF RD, NILES, IL 60714(847) 827-9060(847) 827-7196 Get Directions Write a Review

NPPES record last updated: December 17, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Leonard M Klein NPPES

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

LEONARD M KLEIN (NPI 1255328878) is an individual hematology & oncology provider in Niles, Illinois, licensed in Illinois (036064246) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255328878
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameLEONARD M KLEIN
Location Address8915 W GOLF RDNiles, IL 60714-5905
Mailing Address25070 Network PlChicago, IL 60673-1250 · (847) 585-7000 · Fax (847) 240-0622
Phone(847) 827-9060
Fax(847) 827-7196
Sole ProprietorNo
Enumeration DateSeptember 29, 2005
Last NPPES UpdateDecember 17, 2021
NPPES CertifiedDecember 17, 2021
✔ NPI 1255328878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in IL · 036064246
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
8915 W GOLF RD, Niles, IL 60714
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Other Identifiers 1

Medicaid036064246IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Leonard M Klein 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60714 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
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
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 4

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

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385
DME-Orthotic Devices · category DF010N
1 supplier12 claims240 services$4.92 avg. paid by Medicare
Ostomy skin barrier, pectin-based, paste, per ounce A4406
DME-Orthotic Devices · category DF010N
1 supplier11 claims44 services$5.52 avg. paid by Medicare
Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each A4407
DME-Orthotic Devices · category DF010N
1 supplier12 claims240 services$7.75 avg. paid by Medicare
Ostomy pouch, drainable, high output, for use on a barrier with flange (2 piece system), with filter, each A4413
DME-Orthotic Devices · category DF010N
1 supplier12 claims240 services$5.26 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 18

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

SUSAN G BROWN MD
Internal Medicine (Hematology & Oncology)
8915 W GOLF RD
NILES, IL 60714
Cook County (847) 827-9060
MS. SANA AMLANI NP
Nurse Practitioner
8915 W GOLF RD
NILES, IL 60714
Cook County (847) 809-4328
ILLINOIS CANCER SPECIALISTS
Internal Medicine (Hematology & Oncology)
8915 W GOLF RD
NILES, IL 60714
Cook County (847) 827-9060
JOHN W EKLUND MD
Internal Medicine (Hematology & Oncology)
8915 W GOLF RD
NILES, IL 60714
Cook County (847) 827-9060
DIANE VALEO-SEABRIGHT RPH PHARM D
Pharmacist
8915 W GOLF RD, 1ST FLOOR
NILES, IL 60714
Cook County (847) 827-9060
LABORATORY CORPORATION OF AMERICA
Clinical Medical Laboratory
8915 W GOLF RD
NILES, IL 60714
Cook County (847) 635-8184
DR. PETER V TORTORICE RPH PHARM D
Pharmacist
8915 W GOLF RD, FL 1
NILES, IL 60714
Cook County (847) 827-9060
CHARLES G GROEN MD
Radiology (Radiation Oncology)
8915 W GOLF RD, 3RD FLOOR
NILES, IL 60714
Cook County (847) 827-9490

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 Leonard Klein's NPI number?

The NPI number for Leonard Klein is 1255328878. It was assigned to this individual provider in the NPPES registry on September 29, 2005.

Where is Leonard Klein located?

Leonard Klein practices at 8915 W Golf Rd, Niles, IL 60714. The listed phone number is (847) 827-9060.

What is Leonard Klein's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Leonard Klein enrolled in Medicare?

Yes. Leonard Klein is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Leonard Klein was last updated on December 17, 2021. 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.