CHRISTOPHER DULDULAO RN
NPI 1619643681
Hospice Care, Community Based in Concord, CA
NPI Status: Active since August 19, 2021
Contact Information
3600 CLAYTON RD STE E
CONCORD, CA
ZIP 94521
Phone: (909) 465-3594
- Individual
- Male
- Hospice Care, Community Based
About CHRISTOPHER DULDULAO
This page provides the complete NPI Profile along with additional information for Christopher Duldulao, a provider established in Concord, California with a medical specialization in Hospice Care, Community Based. The healthcare provider is registered in the NPI registry with number 1619643681 assigned on August 2021. The practitioner's primary taxonomy code is 251G00000X. The provider is registered as an individual and his NPI record was last updated 5 years ago.
- NPI
- 1619643681
- Provider Name
- CHRISTOPHER DULDULAO RN
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3600 CLAYTON RD STE E CONCORD, CA 94521
- Location Phone
- (909) 465-3594
- Mailing Address
- 2886 SPANISH BAY DR BRENTWOOD, CA 94513
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-19-2021
- Last Update Date
- 09-28-2021
- 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
Hospice Care, Community Based
- Taxonomy Code
- 251G00000X
- Type
- Agencies
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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 1619643681, 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 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1619643681, enumerated as an "individual" on August 19, 2021.
The provider is located at 3600 CLAYTON RD STE E CONCORD, CA 94521 and the phone number is (909) 465-3594.
Hospice Care, Community Based with taxonomy code 251G00000X.
