GARY L. SCHUMACHER MD
NPI 1518053081
Radiology - Vascular & Interventional Radiology in Great Falls, MT

NPI Status: Active since October 04, 2006

Contact Information

1101 26TH ST S
GREAT FALLS, MT
ZIP 59405
Phone: (406) 455-5665

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

  • Individual
  • Male
  • Radiology
  • Vascular & Interventional Radiology

About GARY SCHUMACHER

This page provides the complete NPI Profile along with additional information for Gary Schumacher, a provider established in Great Falls, Montana with a medical specialization in Radiology, focusing in vascular & interventional radiology . The healthcare provider is registered in the NPI registry with number 1518053081 assigned on October 2006. The practitioner's primary taxonomy code is 2085R0204X with license number 6231 (MT). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1518053081
Provider Name
GARY L. SCHUMACHER MD
Gender
Male
Entity Type
Individual
Location Address
1101 26TH ST S GREAT FALLS, MT 59405
Location Phone
(406) 455-5665
Mailing Address
RADIOLOGY MONTANA, PC 401 15TH AVE S SUITE 204 GREAT FALLS, MT 59405
Mailing Phone
(406) 727-0484
Mailing Fax
(406) 453-9504
Is Sole Proprietor?
No
Enumeration Date
10-04-2006
Last Update Date
09-11-2025
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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

Radiology Vascular & Interventional Radiology

Taxonomy Code
2085R0204X
Type
Allopathic & Osteopathic Physicians
License No.
6231
License State
MT
Taxonomy Description
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.

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)
12085R0202XAllopathic & Osteopathic Physicians

Radiology
Diagnostic Radiology

6231 (MT)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
0010795MEDICAID (05)MT 

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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 1518053081, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
5
Unchanged
Pos 7
3
Doubled → 6
Pos 8
0
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
1
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 1 → 2 0 → 0 3 → 6 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 0 + 5 + 6 + 0 + 1 + 6 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1518053081.

Other Providers at the Same Location


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

Hospitalist
1101 26TH ST S
GREAT FALLS, MT 59405
Internal Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Dietitian, Registered (Nutrition, Metabolic)
1101 26TH ST S
GREAT FALLS, MT 59405
Pediatrics (Neonatal-Perinatal Medicine)
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Nurse Anesthetist, Certified Registered
1101 26TH ST S
GREAT FALLS, MT 59405
Nurse Practitioner
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Nurse Practitioner (Neonatal)
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Radiology (Diagnostic Radiology)
1101 26TH ST S
GREAT FALLS, MT 59405
Emergency Medicine
1101 26TH ST S
GREAT FALLS, MT 59405
Pharmacist (Pharmacotherapy)
1101 26TH ST S
GREAT FALLS, MT 59405
Internal Medicine (Geriatric Medicine)
1101 26TH ST S
GREAT FALLS, MT 59405
General Acute Care Hospital
1101 26TH ST S
GREAT FALLS, MT 59405
Speech-Language Pathologist
1101 26TH ST S
GREAT FALLS, MT 59405
Speech-Language Pathologist
1101 26TH ST S
GREAT FALLS, MT 59405

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518053081, enumerated as an "individual" on October 04, 2006.

The provider is located at 1101 26TH ST S GREAT FALLS, MT 59405 and the phone number is (406) 455-5665.

Radiology with taxonomy code 2085R0204X and a focus in Vascular & Interventional Radiology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.