DR. SETH LEDERMAN M.D.
NPI 1770986135
Internal Medicine - Rheumatology in New York, NY
NPI Status: Active since September 30, 2014
Contact Information
166 E 96TH ST
APT 17A
NEW YORK, NY
ZIP 10128
Phone: (212) 644-2610
Fax: (212) 923-5700
NPPES record last updated: September 30, 2014. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Male
- Internal Medicine
- Rheumatology
About SETH LEDERMAN
This page provides the complete NPI Profile along with additional information for Seth Lederman, an internist established in New York, New York with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1770986135 assigned on September 2014. The practitioner's primary taxonomy code is 207RR0500X with license number 161136-1 (NY). The provider is registered as an individual and his NPI record was last updated 12 years ago.
- NPI
- 1770986135
- Provider Name
- DR. SETH LEDERMAN M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 166 E 96TH ST APT 17A NEW YORK, NY 10128
- Location Phone
- (212) 644-2610
- Location Fax
- (212) 923-5700
- Mailing Address
- 166 E 96TH ST APT. 17A NEW YORK, NY 10128
- Mailing Phone
- (212) 644-2610
- Mailing Fax
- (212) 923-5700
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 09-30-2014
- Last Update Date
- 09-30-2014
- Code Navigator
An internist like Seth Lederman is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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
Internal Medicine Rheumatology
- Taxonomy Code
- 207RR0500X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 161136-1
- License State
- NY
- Taxonomy Description
- An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
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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 1770986135, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
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 65 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1770986135, enumerated as an "individual" on September 30, 2014.
The provider is located at 166 E 96TH ST APT 17A NEW YORK, NY 10128 and the phone number is (212) 644-2610.
Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.
