GAUTAM KAMTHAN MD PC
NPI 1205391224
Ophthalmology in New York, NY

NPI Status: Active since February 04, 2019

Contact Information

250 E 39TH ST APT 11G
NEW YORK, NY
ZIP 10016
Phone: (917) 412-9805

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NPPES record last updated: February 4, 2019. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Organization
  • Ophthalmology

About GAUTAM KAMTHAN MD PC

This page provides the complete NPI Profile along with additional information for Gautam Kamthan Md Pc, a provider established in New York, New York operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1205391224 assigned on February 2019. The practitioner's primary taxonomy code is 207W00000X. The provider is registered as an organization and their NPI record was last updated 7 years ago. Gautam Kamthan Md Pc 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 Gautam Kamthan (Ceo-president And Owner)

NPI
1205391224
Provider Name
GAUTAM KAMTHAN MD PC
Entity Type
Organization
Location Address
250 E 39TH ST APT 11G NEW YORK, NY 10016
Location Phone
(917) 412-9805
Mailing Address
250 E 39TH ST APT 11G NEW YORK, NY 10016
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-04-2019
Last Update Date
02-04-2019
Code Navigator

Ophthalmologists like Gautam Kamthan Md Pc 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.

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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
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.

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

GAUTAM KAMTHAN

Authorized Official Title
CEO-PRESIDENT AND OWNER
Authorized Official Phone
(917) 412-9805

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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 1205391224, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
2
Unchanged
Pos 3
0
Doubled → 0
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
9
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
Check
4
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 0 → 0 3 → 6 1 → 2 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 0 + 5 + 6 + 9 + 2 + 2 + 4 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1205391224.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205391224, enumerated as an "organization" on February 04, 2019.

The provider is located at 250 E 39TH ST APT 11G NEW YORK, NY 10016 and the phone number is (917) 412-9805.

Ophthalmology with taxonomy code 207W00000X.