DR. EKATERINI TSILOU M.D.
NPI 1598093908
Ophthalmology in Bethesda, MD

NPI Status: Active since November 23, 2009

Contact Information

NEI NIH 10 CENTER DR BLDG 10
RM 10N226
BETHESDA, MD
ZIP 20892
Phone: (301) 402-2391
Fax: (301) 402-1214

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  • Individual
  • Female
  • Ophthalmology

About EKATERINI TSILOU

This page provides the complete NPI Profile along with additional information for Ekaterini Tsilou, a provider established in Bethesda, Maryland with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1598093908 assigned on November 2009. The practitioner's primary taxonomy code is 207W00000X with license number MD31284 (DC). The provider is registered as an individual and her NPI record was last updated 17 years ago.

NPI
1598093908
Provider Name
DR. EKATERINI TSILOU M.D.
Gender
Female
Entity Type
Individual
Location Address
NEI NIH 10 CENTER DR BLDG 10 RM 10N226 BETHESDA, MD 20892
Location Phone
(301) 402-2391
Location Fax
(301) 402-1214
Mailing Address
NEI NIH 10 CENTER DR BLDG 10 RM 10N226 BETHESDA, MD 20892
Mailing Phone
(301) 402-2391
Mailing Fax
(301) 402-1214
Is Sole Proprietor?
Yes
Enumeration Date
11-23-2009
Last Update Date
11-23-2009
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Ophthalmologists like Ekaterini Tsilou 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.
MD31284
License State
DC
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.

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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 1598093908, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 0 + 9 + 6 + 9 + 0 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1598093908.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598093908, enumerated as an "individual" on November 23, 2009.

The provider is located at NEI NIH 10 CENTER DR BLDG 10 RM 10N226 BETHESDA, MD 20892 and the phone number is (301) 402-2391.

Ophthalmology with taxonomy code 207W00000X.