NES WESTERN GROUP, A PROFESSIONAL CORPORATION
NPI 1588249569
Emergency Medicine in Hayward, CA
NPI Status: Active since March 11, 2021
Contact Information
27200 CALAROGA AVE
HAYWARD, CA
ZIP 94545
Phone: (510) 264-4000
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Organization
- Emergency Medicine
About NES WESTERN GROUP, A PROFESSIONAL CORPORATION
This page provides the complete NPI Profile along with additional information for Nes Western Group, A Professional Corporation, a provider established in Hayward, California operating as a Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1588249569 assigned on March 2021. The practitioner's primary taxonomy code is 207P00000X. The provider is registered as an organization and their NPI record was last updated July 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Matt Teter (Corporate Secretary)
- NPI
- 1588249569
- Provider Name
- NES WESTERN GROUP, A PROFESSIONAL CORPORATION
- Entity Type
- Organization
- Location Address
- 27200 CALAROGA AVE HAYWARD, CA 94545
- Location Phone
- (510) 264-4000
- Mailing Address
- PO BOX 31117 BELFAST, ME 04915
- Mailing Phone
- (800) 377-8721
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 03-11-2021
- Last Update Date
- 07-09-2026
- 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
Emergency Medicine
- Taxonomy Code
- 207P00000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Group Taxonomy 193400000X MULTIPLE SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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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 1588249569, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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 71 is 80. 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.
HAYWARD, CA 94545
HAYWARD, CA 94545
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1588249569, enumerated as an "organization" on March 11, 2021.
The provider is located at 27200 CALAROGA AVE HAYWARD, CA 94545 and the phone number is (510) 264-4000.
Emergency Medicine with taxonomy code 207P00000X.
