L ANDREW WATKINS M.D.
NPI 1669471637
Ophthalmology in Houston, TX

NPI Status: Active since July 20, 2005

Contact Information

427 W 20TH ST
SUITE 100
HOUSTON, TX
ZIP 77008
Phone: (713) 862-6631
Fax: (713) 862-6632

Get Directions Write a Review

  • Individual
  • Male
  • Ophthalmology

About L ANDREW WATKINS

This page provides the complete NPI Profile along with additional information for L Andrew Watkins, a provider established in Houston, Texas with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1669471637 assigned on July 2005. The practitioner's primary taxonomy code is 207W00000X with license number G3897 (TX). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1669471637
Provider Name
L ANDREW WATKINS M.D.
Gender
Male
Entity Type
Individual
Location Address
427 W 20TH ST SUITE 100 HOUSTON, TX 77008
Location Phone
(713) 862-6631
Location Fax
(713) 862-6632
Mailing Address
7155 OLD KATY RD SUITE N100 HOUSTON, TX 77024
Mailing Phone
(713) 668-6828
Mailing Fax
(713) 862-6632
Is Sole Proprietor?
No
Enumeration Date
07-20-2005
Last Update Date
08-09-2013
Code Navigator

Ophthalmologists like L Andrew Watkins 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.
G3897
License State
TX
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.

Reviews for L ANDREW WATKINS M.D.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1669471637, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
3
Doubled → 6
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 6 → 12 → 3 4 → 8 1 → 2 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 8 + 7 + 2 + 6 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1669471637.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Cardiovascular Disease)
427 W 20TH ST, SUITE 700
HOUSTON, TX 77008
Psychiatry & Neurology (Neurology)
427 W 20TH ST, SUITE 706
HOUSTON, TX 77008
Home Health
427 W 20TH ST, STE. 601
HOUSTON, TX 77008
Dentist
427 W 20TH ST, STE 400
HOUSTON, TX 77008
Family Medicine
427 W 20TH ST, STE 210
HOUSTON, TX 77008
Dentist (General Practice)
427 W 20TH ST, SUITE 400
HOUSTON, TX 77008
Dentist (General Practice)
427 W 20TH ST, SUITE 702
HOUSTON, TX 77008
Dentist
427 W 20TH ST
HOUSTON, TX 77008
Clinic/Center
427 W 20TH ST, SUITE 100
HOUSTON, TX 77008
Specialist
427 W 20TH ST, SUITE 700
HOUSTON, TX 77008
General Practice
427 W 20TH ST, SUITE 206
HOUSTON, TX 77008
Podiatrist (Foot & Ankle Surgery)
427 W 20TH ST, SUITE 703
HOUSTON, TX 77008
Specialist
427 W 20TH ST, SUITE 503
HOUSTON, TX 77008
Internal Medicine
427 W 20TH ST, SUITE 708
HOUSTON, TX 77008
Internal Medicine (Cardiovascular Disease)
427 W 20TH ST, SUITE 300
HOUSTON, TX 77008
Optometrist
427 W 20TH ST
HOUSTON, TX 77008
Nurse Practitioner (Family)
427 W 20TH ST, STE 712
HOUSTON, TX 77008
Acupuncturist
427 W 20TH ST, STE 710
HOUSTON, TX 77008
Physical Therapist
427 W 20TH ST, SUITE 207
HOUSTON, TX 77008
Eyewear Supplier
427 W 20TH ST, SUITE 100
HOUSTON, TX 77008

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669471637, enumerated as an "individual" on July 20, 2005.

The provider is located at 427 W 20TH ST SUITE 100 HOUSTON, TX 77008 and the phone number is (713) 862-6631.

Ophthalmology with taxonomy code 207W00000X.