DR. JASON DENNIS DOCTOR PHARMD
NPI 1215863956
Pharmacist - Emergency Medicine in Greenbrae, CA
NPI Status: Active since June 22, 2026
Contact Information
250 BON AIR RD
GREENBRAE, CA
ZIP 94904
Phone: (415) 925-7203
Fax: (415) 925-7219
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Male
- Pharmacist
- Emergency Medicine
About JASON DOCTOR
This page provides the complete NPI Profile along with additional information for Jason Doctor, a provider established in Greenbrae, California with a medical specialization in Pharmacist, focusing in emergency medicine . The healthcare provider is registered in the NPI registry with number 1215863956 assigned on June 2026. The practitioner's primary taxonomy code is 1835E0208X with license number 83652 (CA). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1215863956
- Provider Name
- DR. JASON DENNIS DOCTOR PHARMD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 250 BON AIR RD GREENBRAE, CA 94904
- Location Phone
- (415) 925-7203
- Location Fax
- (415) 925-7219
- Mailing Address
- 250 BON AIR RD GREENBRAE, CA 94904
- Is Sole Proprietor?
- No
- Enumeration Date
- 06-22-2026
- Last Update Date
- 06-22-2026
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.
- 83652
- License State
- CA
- Taxonomy Description
- A licensed pharmacist who has demonstrated specialized knowledge and skill in the care for patients at the bedside in emergency medicine settings.
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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 1215863956, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
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 64 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.
GREENBRAE, CA 94904
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1215863956, enumerated as an "individual" on June 22, 2026.
The provider is located at 250 BON AIR RD GREENBRAE, CA 94904 and the phone number is (415) 925-7203.
Pharmacist with taxonomy code 1835E0208X and a focus in Emergency Medicine.
