DR. MICHAEL MING LONG LAI M.D.
NPI 1710038229
Ophthalmology in Rancho Cucamonga, CA

NPI Status: Active since January 13, 2007

Contact Information

11398 KENYON WAY
SUITE C
RANCHO CUCAMONGA, CA
ZIP 91701
Phone: (909) 477-3211

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  • Individual
  • Male
  • Ophthalmology

About MICHAEL LAI

This page provides the complete NPI Profile along with additional information for Michael Lai, a provider established in Rancho Cucamonga, California with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1710038229 assigned on January 2007. The practitioner's primary taxonomy code is 207W00000X with license number A91703 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1710038229
Provider Name
DR. MICHAEL MING LONG LAI M.D.
Gender
Male
Entity Type
Individual
Location Address
11398 KENYON WAY SUITE C RANCHO CUCAMONGA, CA 91701
Location Phone
(909) 477-3211
Mailing Address
19734 LULL ST CANOGA PARK, CA 91306
Mailing Phone
(310) 709-1360
Is Sole Proprietor?
No
Enumeration Date
01-13-2007
Last Update Date
07-08-2007
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Ophthalmologists like Michael Lai 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.
A91703
License State
CA
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 1710038229, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
3
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
Check
9
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 8 → 16 → 7 2 → 4

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 + 3 + 1 + 6 + 2 + 4 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1710038229.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710038229, enumerated as an "individual" on January 13, 2007.

The provider is located at 11398 KENYON WAY SUITE C RANCHO CUCAMONGA, CA 91701 and the phone number is (909) 477-3211.

Ophthalmology with taxonomy code 207W00000X.