HEALTHCARE ALTERNATIVE SYSTEMS, INC.
NPI 1740897149
Clinic/Center - Rehabilitation, Substance Use Disorder in Chicago, IL

NPI Status: Active since September 29, 2020

Contact Information

45 W 111TH ST
CHICAGO, IL
ZIP 60628
Phone: (773) 252-3100

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  • Organization
  • Clinic/Center
  • Rehabilitation, Substance Use Disorder

About HEALTHCARE ALTERNATIVE SYSTEMS, INC.

This page provides the complete NPI Profile along with additional information for Healthcare Alternative Systems, Inc., a provider established in Chicago, Illinois operating as a Clinic/center, focusing in rehabilitation, substance use disorder . The healthcare provider is registered in the NPI registry with number 1740897149 assigned on September 2020. The practitioner's primary taxonomy code is 261QR0405X. The provider is registered as an organization and their NPI record was last updated 5 years ago. The authorized official of this NPI record is Tom Hartmann (Vp Business/it)

NPI
1740897149
Provider Name
HEALTHCARE ALTERNATIVE SYSTEMS, INC.
Entity Type
Organization
Location Address
45 W 111TH ST CHICAGO, IL 60628
Location Phone
(773) 252-3100
Mailing Address
2755 W ARMITAGE AVE CHICAGO, IL 60647
Mailing Phone
(773) 252-3100
Mailing Fax
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-29-2020
Last Update Date
03-04-2021
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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

Clinic/Center Rehabilitation, Substance Use Disorder

Taxonomy Code
261QR0405X
Type
Ambulatory Health Care Facilities

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

TOM HARTMANN

Authorized Official Title
VP BUSINESS/IT
Authorized Official Phone
(773) 252-8945

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NPI 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 1740897149, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
7
Unchanged
Pos 3
4
Doubled → 8
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
Check
9
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 4 → 8 8 → 16 → 7 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 8 + 0 + 1 + 6 + 9 + 1 + 4 + 1 + 8 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1740897149.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Specialist
45 W 111TH ST, SUITE 203
CHICAGO, IL 60628
Internal Medicine
45 W 111TH ST, SUITE B
CHICAGO, IL 60628
Anesthesiology
45 W 111TH ST
CHICAGO, IL 60628
General Practice
45 W 111TH ST
CHICAGO, IL 60628
Obstetrics & Gynecology
45 W 111TH ST, 3RD FLOOR
CHICAGO, IL 60628
Pediatrics
45 W 111TH ST
CHICAGO, IL 60628
Clinic/Center (Federally Qualified Health Center (FQHC))
45 W 111TH ST
CHICAGO, IL 60628
Pharmacy (Community/Retail Pharmacy)
45 W 111TH ST
CHICAGO, IL 60628
Nurse Practitioner (Family)
45 W 111TH ST
CHICAGO, IL 60628
Nurse Practitioner (Family)
45 W 111TH ST
CHICAGO, IL 60628
Dietitian, Registered
45 W 111TH ST
CHICAGO, IL 60628
Dentist (General Practice)
45 W 111TH ST
CHICAGO, IL 60628
Nurse Practitioner (Family)
45 W 111TH ST
CHICAGO, IL 60628
Emergency Medicine
45 W 111TH ST
CHICAGO, IL 60628
Radiology (Diagnostic Radiology)
45 W 111TH ST
CHICAGO, IL 60628
Emergency Medicine
45 W 111TH ST
CHICAGO, IL 60628
Emergency Medicine
45 W 111TH ST
CHICAGO, IL 60628
Anesthesiology (Pain Medicine)
45 W 111TH ST
CHICAGO, IL 60628
Physician Assistant
45 W 111TH ST
CHICAGO, IL 60628
Nurse Practitioner (Gerontology)
45 W 111TH ST
CHICAGO, IL 60628

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1740897149, enumerated as an "organization" on September 29, 2020.

The provider is located at 45 W 111TH ST CHICAGO, IL 60628 and the phone number is (773) 252-3100.

Clinic/Center with taxonomy code 261QR0405X and a focus in Rehabilitation, Substance Use Disorder.