GREGORY EARL SLEVIN PHARMD
NPI 1598642274
Pharmacist - Emergency Medicine in Vancouver, WA
NPI Status: Active since August 16, 2025
Contact Information
400 NE MOTHER JOSEPH PL
VANCOUVER, WA
ZIP 98664
Phone: (360) 514-7654
- Individual
- Male
- Pharmacist
- Emergency Medicine
About GREGORY SLEVIN
This page provides the complete NPI Profile along with additional information for Gregory Slevin, a provider established in Vancouver, Washington with a medical specialization in Pharmacist, focusing in emergency medicine . The healthcare provider is registered in the NPI registry with number 1598642274 assigned on August 2025. The practitioner's primary taxonomy code is 1835E0208X with license number PH00018812 (WA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1598642274
- Provider Name
- GREGORY EARL SLEVIN PHARMD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 400 NE MOTHER JOSEPH PL VANCOUVER, WA 98664
- Location Phone
- (360) 514-7654
- Mailing Address
- 400 NE MOTHER JOSEPH PL VANCOUVER, WA 98664
- Mailing Phone
- (360) 514-7654
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-16-2025
- Last Update Date
- 08-16-2025
- 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
Pharmacist Emergency Medicine
- Taxonomy Code
- 1835E0208X
- Type
- Pharmacy Service Providers
- License No.
- PH00018812
- License State
- WA
- Taxonomy Description
- A licensed pharmacist who has demonstrated specialized knowledge and skill in the care for patients at the bedside in emergency medicine settings.
Reviews for GREGORY EARL SLEVIN PHARMD
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1598642274, 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.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1598642274, enumerated as an "individual" on August 16, 2025.
The provider is located at 400 NE MOTHER JOSEPH PL VANCOUVER, WA 98664 and the phone number is (360) 514-7654.
Pharmacist with taxonomy code 1835E0208X and a focus in Emergency Medicine.
