RALPH WAYNE STUMBO JR.
NPI 1790821544
Pulmonary Function Technologist in Tacoma, WA
NPI Status: Active since January 29, 2007
Contact Information
209 MARTIN LUTHER KING JR WAY
TACOMA, WA
ZIP 98405
Phone: (253) 596-3300
- Individual
- Male
- Pulmonary Function Technologist
About RALPH STUMBO
This page provides the complete NPI Profile along with additional information for Ralph Stumbo, a provider established in Tacoma, Washington with a medical specialization in Pulmonary Function Technologist. The healthcare provider is registered in the NPI registry with number 1790821544 assigned on January 2007. The practitioner's primary taxonomy code is 225B00000X with license number LR00001751 (WA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1790821544
- Provider Name
- RALPH WAYNE STUMBO JR.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 209 MARTIN LUTHER KING JR WAY TACOMA, WA 98405
- Location Phone
- (253) 596-3300
- Mailing Address
- PO BOX 34584 SEATTLE, WA 98124
- Mailing Phone
- (509) 241-7349
- Mailing Fax
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-29-2007
- Last Update Date
- 09-11-2025
- 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
Pulmonary Function Technologist
- Taxonomy Code
- 225B00000X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- LR00001751
- License State
- WA
- Taxonomy Description
- A pulmonary function technologist who is trained and qualified to perform pulmonary diagnostic tests. In the course of conducting these tests, the Pulmonary Function Technologist is able to setup, calibrate, maintain, and ensure the quality assurance of the pulmonary function testing equipment. In the laboratory, clinical or patient care setting the technologist instructs patients, elicits cooperation, performs procedures, monitors patient response, and evaluates patient performance. Tests results are calculated, compared with predicted normal ranges, and evaluated for reliability. The technologist collects clinical history data and evaluates the clinical implications of the test results.
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) |
|---|---|---|---|---|
| 1 | 227900000X | Respiratory, Developmental, Rehabilitative and Restorative Service Providers | Respiratory Therapist, Registered | LR00001751 (WA) |
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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 1790821544, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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.
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 66 is 70. 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.
TACOMA, WA 98405
TACOMA, WA 98405
TACOMA, WA 98405
TACOMA, WA 98405
TACOMA, WA 98405
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1790821544, enumerated as an "individual" on January 29, 2007.
The provider is located at 209 MARTIN LUTHER KING JR WAY TACOMA, WA 98405 and the phone number is (253) 596-3300.
Pulmonary Function Technologist with taxonomy code 225B00000X.
