KATHERINE LYNN KLAASSEN MD
NPI 1114937034
Psychiatry & Neurology - Geriatric Psychiatry in Muskogee, OK
NPI Status: Active since August 09, 2006
Contact Information
1011 HONOR HEIGHTS DR
DEPARTMENT OF VETERANS AFFAIRS- MEDICAL CENTER
MUSKOGEE, OK
ZIP 74401
Phone: (918) 680-3699
Fax: (918) 680-3701
- Individual
- Female
- Psychiatry & Neurology
- Geriatric Psychiatry
About KATHERINE KLAASSEN
This page provides the complete NPI Profile along with additional information for Katherine Klaassen, a provider established in Muskogee, Oklahoma with a medical specialization in Psychiatry & Neurology, focusing in geriatric psychiatry . The healthcare provider is registered in the NPI registry with number 1114937034 assigned on August 2006. The practitioner's primary taxonomy code is 2084P0805X with license number 18532 (OK). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1114937034
- Provider Name
- KATHERINE LYNN KLAASSEN MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1011 HONOR HEIGHTS DR DEPARTMENT OF VETERANS AFFAIRS- MEDICAL CENTER MUSKOGEE, OK 74401
- Location Phone
- (918) 680-3699
- Location Fax
- (918) 680-3701
- Mailing Address
- 1011 HONOR HEIGHTS DR DEPARTMENT OF VETERANS AFFAIRS- MEDICAL CENTER MUSKOGEE, OK 74401
- Mailing Phone
- (918) 680-3699
- Mailing Fax
- (918) 680-3701
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-09-2006
- 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
Psychiatry & Neurology Geriatric Psychiatry
- Taxonomy Code
- 2084P0805X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 18532
- License State
- OK
- Taxonomy Description
- Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.
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 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 18532 (OK) |
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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 1114937034, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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 56 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.
MUSKOGEE, OK 74401
MUSKOGEE, OK 74401
MUSKOGEE, OK 74401
MUSKOGEE, OK 74401
MUSKOGEE, OK 74401
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1114937034, enumerated as an "individual" on August 09, 2006.
The provider is located at 1011 HONOR HEIGHTS DR DEPARTMENT OF VETERANS AFFAIRS- MEDICAL CENTER MUSKOGEE, OK 74401 and the phone number is (918) 680-3699.
Psychiatry & Neurology with taxonomy code 2084P0805X and a focus in Geriatric Psychiatry.
