OREILLY MEDICAL CONSULTANTS SC
NPI 1528103504
Internal Medicine - Hematology & Oncology in Palos Heights, IL

NPI Status: Active since February 20, 2007

Contact Information

12150 S HARLEM AVE
PALOS HEIGHTS, IL
ZIP 60463
Phone: (708) 361-4778

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NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

  • Organization
  • Internal Medicine
  • Hematology & Oncology

About OREILLY MEDICAL CONSULTANTS SC

This page provides the complete NPI Profile along with additional information for Oreilly Medical Consultants Sc, an internist established in Palos Heights, Illinois operating as a Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1528103504 assigned on February 2007. The practitioner's primary taxonomy code is 207RH0003X. The provider is registered as an organization and their NPI record was last updated one year ago. Oreilly Medical Consultants Sc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Daniel Oreilly M.d. (Physician Owner)

NPI
1528103504
Provider Name
OREILLY MEDICAL CONSULTANTS SC
Entity Type
Organization
Location Address
12150 S HARLEM AVE PALOS HEIGHTS, IL 60463
Location Phone
(708) 361-4778
Mailing Address
12150 S HARLEM AVE PALOS HEIGHTS, IL 60463
Mailing Phone
(708) 361-4778
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-20-2007
Last Update Date
09-11-2025
Code Navigator

An internist like Oreilly Medical Consultants Sc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Hematology & Oncology

Taxonomy Code
207RH0003X
Type
Allopathic & Osteopathic Physicians
License State
IL
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RG0100XAllopathic & Osteopathic Physicians

Internal Medicine
Gastroenterology

(IL)

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. DANIEL OREILLY M.D.

Authorized Official Title
PHYSICIAN OWNER
Authorized Official Phone
(708) 361-4778

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NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1528103504, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
2
Doubled → 4
Pos 4
8
Unchanged
Pos 5
1
Doubled → 2
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 2 → 4 1 → 2 3 → 6 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 4 + 8 + 2 + 0 + 6 + 5 + 0 + 24 = 56

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1528103504.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Internal Medicine (Hematology & Oncology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Specialist
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Specialist
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Specialist
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Internal Medicine (Gastroenterology)
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463
Nurse Practitioner
12150 S HARLEM AVE
PALOS HEIGHTS, IL 60463

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1528103504, enumerated as an "organization" on February 20, 2007.

The provider is located at 12150 S HARLEM AVE PALOS HEIGHTS, IL 60463 and the phone number is (708) 361-4778.

Internal Medicine with taxonomy code 207RH0003X and a focus in Hematology & Oncology.