KRISHAN CHANDER NAYYAR M.D.
NPI 1588643191
Dermatology in Hicksville, NY

NPI Status: Active since January 11, 2006

Contact Information

350 S BROADWAY
HICKSVILLE, NY
ZIP 11801
Phone: (516) 938-0100
Fax: (516) 938-0120

NPI Profile Information
Primary Taxonomy
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Dermatology

About KRISHAN NAYYAR

This page provides the complete NPI Profile along with additional information for Krishan Nayyar, a provider established in Hicksville, New York with a medical specialization in Dermatology. The healthcare provider is registered in the NPI registry with number 1588643191 assigned on January 2006. The practitioner's primary taxonomy code is 207N00000X with license number 157769 (NY). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI: 1588643191
Provider Name: KRISHAN CHANDER NAYYAR M.D.
Gender: Male
Entity Type: Individual
Location Address: 350 S BROADWAY HICKSVILLE, NY 11801
Location Phone: (516) 938-0100
Location Fax: (516) 938-0120
Mailing Address: 441 9TH AVE CREDENTIALING 3RD FL NEW YORK, NY 10001
Mailing Phone: (646) 680-2894
Mailing Fax: (516) 938-0120
Is Sole Proprietor?: No
Enumeration Date: 01-11-2006
Last Update Date: 12-08-2015
Code Navigator

A dermatologist like Krishan Nayyar is a medical specialty involving the management of skin conditions and diseases. Dermatologists diagnose some sexually transmitted diseases, warts, cancer, acne, dermatitis and may offer cosmetic treatments, and therapies that reduce age spots and wrinkles.

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: Dermatology
Taxonomy Code: 207N00000X
Type: Allopathic & Osteopathic Physicians
License No.: 157769
License State: NY
Taxonomy Description: A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier	Type / Code	Identifier State	Identifier Issuer
00939331	MEDICAID (05)	NY
70D133	MEDICARE PIN (08)	NY

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 1588643191, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 18 → 1 + 8

Check

Target digit

Regular digit Doubled digit Check digit

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.

1 → 2 8 → 16 → 7 6 → 12 → 3 3 → 6 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 1 + 6 + 8 + 1 + 2 + 4 + 6 + 1 + 1 + 8 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1588643191.