SHERIDAN MEMORIAL HOSPITAL ASSOCIATION
NPI 1164597720
General Acute Care Hospital - Critical Access in Plentywood, MT

NPI Status: Active since November 21, 2006

Contact Information

440 W LAUREL AVE
PLENTYWOOD, MT
ZIP 59254
Phone: (406) 765-3700
Fax: (406) 765-3800

NPI Profile Information
Primary Taxonomy
Authorized Official
CLIA Information
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
General Acute Care Hospital
Critical Access
CLIA Number: 27D2102222
CLIA Cert. Type: Ambulance
CLIA Exp. Date: 09-16-2027

About SHERIDAN MEMORIAL HOSPITAL ASSOCIATION

This page provides the complete NPI Profile along with additional information for Sheridan Memorial Hospital Association, a provider established in Plentywood, Montana operating as a General Acute Care Hospital, focusing in critical access . The healthcare provider is registered in the NPI registry with number 1164597720 assigned on November 2006. The practitioner's primary taxonomy code is 282NC0060X with license number 10179 (MT). The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is Mr. Wayne J Nelson (Ceo)

NPI: 1164597720
Provider Name: SHERIDAN MEMORIAL HOSPITAL ASSOCIATION
Entity Type: Organization
Location Address: 440 W LAUREL AVE PLENTYWOOD, MT 59254
Location Phone: (406) 765-3700
Location Fax: (406) 765-3800
Mailing Address: 440 W LAUREL AVE PLENTYWOOD, MT 59254
Mailing Phone: (406) 765-3700
Mailing Fax: (406) 765-3800
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 11-21-2006
Last Update Date: 08-22-2020
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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: General Acute Care Hospital Critical Access
Taxonomy Code: 282NC0060X
Type: Hospitals
License No.: 10179
License State: MT

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: MR. WAYNE J NELSON
Authorized Official Title: CEO
Authorized Official Phone: (406) 765-3700

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number: 27D2102222
Facility Type: Ambulance
Certificate Effective Date: September 17, 2025
Certificate Expiration Date: September 16, 2027
Laboratory Director: DR. SIAVISH D. SHAHBODAGHI
Certificate Type: Certificate of Waiver
Certificate Type Description: This CLIA certificate is issued to Sheridan Memorial Hospital Association to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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 1164597720, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 4

Check

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 6 → 12 → 3 5 → 10 → 1 7 → 14 → 5 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 1 + 0 + 9 + 1 + 4 + 7 + 4 + 24 = 60

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

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

60 - 60 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1164597720.