DR. FRED WILLIAM MARCUS D.O.
NPI 1710123963
Family Medicine - Addiction Medicine in Syosset, NY
NPI Status: Active since December 17, 2008
Contact Information
770 JERICHO TPKE
SYOSSET, NY
ZIP 11791
Phone: (516) 496-2049
Fax: (516) 496-2049
- Individual
- Male
- Family Medicine
- Addiction Medicine
About FRED MARCUS
This page provides the complete NPI Profile along with additional information for Fred Marcus, a provider established in Syosset, New York with a medical specialization in Family Medicine, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1710123963 assigned on December 2008. The practitioner's primary taxonomy code is 207QA0401X with license number 132700 (NY). The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1710123963
- Provider Name
- DR. FRED WILLIAM MARCUS D.O.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 770 JERICHO TPKE SYOSSET, NY 11791
- Location Phone
- (516) 496-2049
- Location Fax
- (516) 496-2049
- Mailing Address
- 770 JERICHO TPKE SYOSSET, NY 11791
- Mailing Phone
- (516) 496-2049
- Mailing Fax
- (516) 496-2049
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-17-2008
- Last Update Date
- 12-17-2008
- 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
Family Medicine Addiction Medicine
- Taxonomy Code
- 207QA0401X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 132700
- License State
- NY
- Taxonomy Description
- A family medicine physician who specializes in the diagnosis and treatment of addictions.
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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 1710123963, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).
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 57 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1710123963, enumerated as an "individual" on December 17, 2008.
The provider is located at 770 JERICHO TPKE SYOSSET, NY 11791 and the phone number is (516) 496-2049.
Family Medicine with taxonomy code 207QA0401X and a focus in Addiction Medicine.
