CHELSEA EYE ASSOCIATES, LLP
NPI 1790852556
Ophthalmology in New York, NY

NPI Status: Active since November 29, 2006

Contact Information

157 WEST 19 STREET
NEW YORK, NY
ZIP 10011
Phone: (212) 727-3717
Fax: (212) 727-3789

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NPPES record last updated: July 11, 2011. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Organization
  • Ophthalmology

About CHELSEA EYE ASSOCIATES, LLP

This page provides the complete NPI Profile along with additional information for Chelsea Eye Associates, Llp, a provider established in New York, New York operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1790852556 assigned on November 2006. The practitioner's primary taxonomy code is 207W00000X with license number 158010 (). The provider is registered as an organization and their NPI record was last updated 15 years ago. Chelsea Eye Associates, Llp operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Susan Tomkin (Office Manager)

NPI
1790852556
Provider Name
CHELSEA EYE ASSOCIATES, LLP
Entity Type
Organization
Location Address
157 WEST 19 STREET NEW YORK, NY 10011
Location Phone
(212) 727-3717
Location Fax
(212) 727-3789
Mailing Address
157 WEST 19 STREET NEW YORK, NY 10011
Mailing Phone
(212) 727-3717
Mailing Fax
(212) 727-3789
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
11-29-2006
Last Update Date
07-11-2011
Code Navigator

Ophthalmologists like Chelsea Eye Associates, Llp specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
158010
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207W00000XAllopathic & Osteopathic Physicians

Ophthalmology

174844 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

SUSAN TOMKIN

Authorized Official Title
OFFICE MANAGER
Authorized Official Phone
(212) 727-3717

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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 1790852556, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
6
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 9 → 18 → 9 8 → 16 → 7 2 → 4 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 1 + 6 + 5 + 4 + 5 + 1 + 0 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1790852556.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790852556, enumerated as an "organization" on November 29, 2006.

The provider is located at 157 WEST 19 STREET NEW YORK, NY 10011 and the phone number is (212) 727-3717.

Ophthalmology with taxonomy code 207W00000X.