DR. MARGARET RYAN MD, MPH
NPI 1619977618
Preventive Medicine - Preventive Medicine/Occupational Environmental Medicine in San Diego, CA
NPI Status: Active since August 01, 2005
Contact Information
NHRC CODE 25
BOX 85122
SAN DIEGO, CA
ZIP 92186
Phone: (619) 553-8097
Fax: (619) 553-7601
- Individual
- Female
- Preventive Medicine
- Preventive Medicine/Occupational Environ...
About MARGARET RYAN
This page provides the complete NPI Profile along with additional information for Margaret Ryan, a provider established in San Diego, California with a medical specialization in Preventive Medicine, focusing in preventive medicine/occupational environmental medicine . The healthcare provider is registered in the NPI registry with number 1619977618 assigned on August 2005. The practitioner's primary taxonomy code is 2083P0500X with license number D42576 (MD). The provider is registered as an individual and her NPI record was last updated 19 years ago.
- NPI
- 1619977618
- Provider Name
- DR. MARGARET RYAN MD, MPH
- Gender
- Female
- Entity Type
- Individual
- Location Address
- NHRC CODE 25 BOX 85122 SAN DIEGO, CA 92186
- Location Phone
- (619) 553-8097
- Location Fax
- (619) 553-7601
- Mailing Address
- 12244 CAMINITO DEL MAR SANDS SAN DIEGO, CA 92130
- Mailing Phone
- (858) 259-4234
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-01-2005
- Last Update Date
- 07-08-2007
- 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
Preventive Medicine Preventive Medicine/Occupational Environmental Medicine
- Taxonomy Code
- 2083P0500X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- D42576
- License State
- MD
- Taxonomy Description
- A preventive medicine physician who specializes in preventive medicine/occupational-environmental medicine, which is focused on protecting the population from occupational and environmental conditions.
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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 1619977618, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).
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 72 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1619977618, enumerated as an "individual" on August 01, 2005.
The provider is located at NHRC CODE 25 BOX 85122 SAN DIEGO, CA 92186 and the phone number is (619) 553-8097.
Preventive Medicine with taxonomy code 2083P0500X and a focus in Preventive Medicine/Occupational Environmental Medicine.
