DAVID ANTHONY EWING-CHOW M.D.
NPI 1710043757
Ophthalmology in Watertown, NY

NPI Status: Active since December 27, 2006

Contact Information

826 WASHINGTON ST
SUITE 102
WATERTOWN, NY
ZIP 13601
Phone: (315) 681-6379
Fax: (315) 681-6823

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  • Individual
  • Male
  • Ophthalmology

About DAVID EWING-CHOW

This page provides the complete NPI Profile along with additional information for David Ewing-chow, a provider established in Watertown, New York with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1710043757 assigned on December 2006. The practitioner's primary taxonomy code is 207W00000X with license number 221276 (NY). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1710043757
Provider Name
DAVID ANTHONY EWING-CHOW M.D.
Gender
Male
Entity Type
Individual
Location Address
826 WASHINGTON ST SUITE 102 WATERTOWN, NY 13601
Location Phone
(315) 681-6379
Location Fax
(315) 681-6823
Mailing Address
53-59 PUBLIC SQ WATERTOWN, NY 13601
Mailing Phone
(315) 681-6379
Is Sole Proprietor?
No
Enumeration Date
12-27-2006
Last Update Date
02-24-2017
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Ophthalmologists like David Ewing-chow 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
License No.
221276
License State
NY
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.

Insurance Plans Accepted

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

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

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
BB8076MEDICARE ID-TYPE UNSPECIFIED (04)NY 
AA0625MEDICARE ID-TYPE UNSPECIFIED (04)NY 
G58970MEDICARE UPIN (02)NY 

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient complete exam of visual system

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

This service was performed 88 times for 88 patients

Established patient problem focused exam of visual system

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

This service was performed 107 times for 104 patients

Exam of visual field with extended testing

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

This service was performed 35 times for 35 patients

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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 1710043757, 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.

Pos 1
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
7
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 1 → 2 0 → 0 3 → 6 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 + 2 + 0 + 0 + 4 + 6 + 7 + 1 + 0 + 24 = 53

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.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1710043757.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Physician Assistant (Medical)
826 WASHINGTON ST, SUITE 204
WATERTOWN, NY 13601
Otolaryngology
826 WASHINGTON ST, SUITE 204
WATERTOWN, NY 13601
Otolaryngology
826 WASHINGTON ST, SUITE 204
WATERTOWN, NY 13601
Physician Assistant
826 WASHINGTON ST, STE 106
WATERTOWN, NY 13601
Specialist
826 WASHINGTON ST, SUITE 104
WATERTOWN, NY 13601
Specialist
826 WASHINGTON ST, SUITE 104
WATERTOWN, NY 13601
Ophthalmology
826 WASHINGTON ST, SUITE 102
WATERTOWN, NY 13601
Surgery
826 WASHINGTON ST
WATERTOWN, NY 13601
Technician/Technologist (Optician)
826 WASHINGTON ST, SUITE 100
WATERTOWN, NY 13601
Otolaryngology
826 WASHINGTON ST
WATERTOWN, NY 13601
Obstetrics & Gynecology
826 WASHINGTON ST
WATERTOWN, NY 13601
Surgery
826 WASHINGTON ST
WATERTOWN, NY 13601
Otolaryngology
826 WASHINGTON ST, SUITE 204
WATERTOWN, NY 13601
Surgery
826 WASHINGTON ST
WATERTOWN, NY 13601
Nurse Anesthetist, Certified Registered
826 WASHINGTON ST
WATERTOWN, NY 13601
Surgery
826 WASHINGTON ST
WATERTOWN, NY 13601

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710043757, enumerated as an "individual" on December 27, 2006.

The provider is located at 826 WASHINGTON ST SUITE 102 WATERTOWN, NY 13601 and the phone number is (315) 681-6379.

Ophthalmology with taxonomy code 207W00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.