CASSANDRA F RIEHL
NPI 1811824220
Respiratory Therapist, Registered in Helena, MT
NPI Status: Active since May 07, 2026
Contact Information
2475 E BROADWAY ST
HELENA, MT
ZIP 59601
Phone: (406) 447-2605
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Female
- Respiratory Therapist, Registered
About CASSANDRA RIEHL
This page provides the complete NPI Profile along with additional information for Cassandra Riehl, a provider established in Helena, Montana with a medical specialization in Respiratory Therapist, Registered. The healthcare provider is registered in the NPI registry with number 1811824220 assigned on May 2026. The practitioner's primary taxonomy code is 227900000X. The provider is registered as an individual and her NPI record was last updated May 2026.
- NPI
- 1811824220
- Provider Name
- CASSANDRA F RIEHL
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 2475 E BROADWAY ST HELENA, MT 59601
- Location Phone
- (406) 447-2605
- Mailing Address
- 2475 E BROADWAY ST HELENA, MT 59601
- Mailing Phone
- (406) 447-2605
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-07-2026
- Last Update Date
- 05-07-2026
- Code Navigator
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
Respiratory Therapist, Registered
- Taxonomy Code
- 227900000X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- Taxonomy Description
- A Registered Respiratory Therapist (RRT) is an advanced therapist who has passed standardized written and clinical simulation examinations administered by the National Board for Respiratory Care (NBRC). In addition, to the certified therapist (CRT) entry level skills, RRTs have advanced education and training in patient assessment, in the development and modification of patient care plans, and in assuring the appropriate utilization of respiratory care resources. An RRT is a graduate of an associate or baccalaureate degree producing educational programs approved by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) and where applicable, is licensed by the state and is practicing within the scope of that license.
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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 1811824220, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
HELENA, MT 59601
HELENA, MT 59601
HELENA, MT 59601
HELENA, MT 59601
HELENA, MT 59601
HELENA, MT 59601
HELENA, MT 59601
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1811824220, enumerated as an "individual" on May 07, 2026.
The provider is located at 2475 E BROADWAY ST HELENA, MT 59601 and the phone number is (406) 447-2605.
Respiratory Therapist, Registered with taxonomy code 227900000X.
