MARK L GROTHMANN ATC
NPI 1942273271
Specialist/Technologist in West Chester, PA
NPI Status: Active since February 08, 2006
Contact Information
450 ELLIS LN
WEST CHESTER, PA
ZIP 19380
Phone: (484) 266-3938
- Individual
- Male
- Specialist/Technologist
About MARK GROTHMANN
This page provides the complete NPI Profile along with additional information for Mark Grothmann, a provider established in West Chester, Pennsylvania with a medical specialization in Specialist/technologist. The healthcare provider is registered in the NPI registry with number 1942273271 assigned on February 2006. The practitioner's primary taxonomy code is 225500000X with license number RT000133A (PA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1942273271
- Provider Name
- MARK L GROTHMANN ATC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 450 ELLIS LN WEST CHESTER, PA 19380
- Location Phone
- (484) 266-3938
- Mailing Address
- 307 N CHESTER RD WEST CHESTER, PA 19380
- Mailing Phone
- (610) 429-2400
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-08-2006
- 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
Specialist/Technologist
- Taxonomy Code
- 225500000X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- RT000133A
- License State
- PA
- Taxonomy Description
- General classification identifying respiratory, developmental, rehabilitative or restorative services individuals who are trained on a specific piece of equipment or technical procedure.
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 | 2255A2300X | Respiratory, Developmental, Rehabilitative and Restorative Service Providers | Specialist/Technologist | RT000133A (PA) |
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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 1942273271, 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 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.
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 69 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
WEST CHESTER, PA 19380
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1942273271, enumerated as an "individual" on February 08, 2006.
The provider is located at 450 ELLIS LN WEST CHESTER, PA 19380 and the phone number is (484) 266-3938.
Specialist/Technologist with taxonomy code 225500000X.
