SYLVIA ESHAK WILLIAM ESHAK MD
NPI 1306540497
Family Medicine in Clifton, NJ
- Individual
- Female
- Family Medicine
About SYLVIA ESHAK
This page provides the complete NPI Profile along with additional information for Sylvia Eshak, a primary care provider established in Clifton, New Jersey with a medical specialization in Family Medicine. The healthcare provider is registered in the NPI registry with number 1306540497 assigned on March 2023. The practitioner's primary taxonomy code is 207Q00000X with license number 25MA13012800 (NJ). The provider is registered as an individual and her NPI record was last updated July 2026.
- NPI
- 1306540497
- Provider Name
- SYLVIA ESHAK WILLIAM ESHAK MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 2 BRIGHTON RD STE 400 CLIFTON, NJ 07012
- Location Phone
- (862) 249-4904
- Location Fax
- (862) 249-4903
- Mailing Address
- PO BOX 14564 BELFAST, ME 04915
- Mailing Phone
- (212) 524-7767
- Mailing Fax
- (212) 643-8201
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-30-2023
- Last Update Date
- 07-10-2026
- Code Navigator
A primary care provider (PCP) like Sylvia Eshak sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .
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
- Taxonomy Code
- 207Q00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 25MA13012800
- License State
- NJ
- Taxonomy Description
- Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
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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 1306540497, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).
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 53 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
CLIFTON, NJ 07012
CLIFTON, NJ 07012
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1306540497, enumerated as an "individual" on March 30, 2023.
The provider is located at 2 BRIGHTON RD STE 400 CLIFTON, NJ 07012 and the phone number is (862) 249-4904.
Family Medicine with taxonomy code 207Q00000X.
