DARNELL HOWARD
NPI 1992652390
Point of Service in Oakland, CA
NPI Status: Active since March 13, 2026
Contact Information
510 17TH ST
OAKLAND, CA
ZIP 94612
Phone: (510) 365-4700
- Individual
- Male
- Point of Service
About DARNELL HOWARD
This page provides the complete NPI Profile along with additional information for Darnell Howard, a provider established in Oakland, California with a medical specialization in Point Of Service. The healthcare provider is registered in the NPI registry with number 1992652390 assigned on March 2026. The practitioner's primary taxonomy code is 305S00000X. The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1992652390
- Provider Name
- DARNELL HOWARD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 510 17TH ST OAKLAND, CA 94612
- Location Phone
- (510) 365-4700
- Mailing Address
- 1335 EUCALYPTUS DR VALLEJO, CA 94591
- Mailing Phone
- (510) 365-4700
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 03-13-2026
- Last Update Date
- 03-13-2026
- 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
Point of Service
- Taxonomy Code
- 305S00000X
- Type
- Managed Care Organizations
- Taxonomy Description
- This product may also be called an open-ended HMO and offers a transition product incorporating features of both HMOs and PPOs. Beneficiaries are enrolled in an HMO but have the option to go outside the networks for an additional cost.
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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 1992652390, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. The difference is the calculated check digit.
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Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1992652390, enumerated as an "individual" on March 13, 2026.
The provider is located at 510 17TH ST OAKLAND, CA 94612 and the phone number is (510) 365-4700.
Point of Service with taxonomy code 305S00000X.
