MAY LING CHUNG-HAN O.D.
NPI 1104020411
Optometrist in New York, NY

NPI Status: Active since June 12, 2007

Contact Information

139 CENTRE ST
610
NEW YORK, NY
ZIP 10013
Phone: (212) 966-5880

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  • Individual
  • Female
  • Optometrist

About MAY CHUNG-HAN

This page provides the complete NPI Profile along with additional information for May Chung-han, a provider established in New York, New York with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1104020411 assigned on June 2007. The practitioner's primary taxonomy code is 152W00000X with license number TUV007053 (NY). The provider is registered as an individual and her NPI record was last updated 12 years ago.

NPI
1104020411
Provider Name
MAY LING CHUNG-HAN O.D.
Gender
Female
Entity Type
Individual
Location Address
139 CENTRE ST 610 NEW YORK, NY 10013
Location Phone
(212) 966-5880
Mailing Address
139 CENTRE ST 610 NEW YORK, NY 10013
Is Sole Proprietor?
Yes
Enumeration Date
06-12-2007
Last Update Date
11-17-2014
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
TUV007053
License State
NY
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

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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 1104020411, we treat the final digit (1) 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 39. The final step is to find the difference between that total and the next multiple of ten (40 - 39 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 0 + 2 + 0 + 4 + 2 + 24 = 39

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

The next multiple of ten after 39 is 40. The difference is the calculated check digit.

40 - 39 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1104020411.

Other Providers at the Same Location


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

Obstetrics & Gynecology
139 CENTRE ST, 701
NEW YORK, NY 10013
Internal Medicine (Cardiovascular Disease)
139 CENTRE ST, SUITE 307
NEW YORK, NY 10013
Otolaryngology
139 CENTRE ST, SUITE 607
NEW YORK, NY 10013
Surgery
139 CENTRE ST, SUITE 512
NEW YORK, NY 10013
Audiologist-Hearing Aid Fitter
139 CENTRE ST, SUITE 803
NEW YORK, NY 10013
Audiologist-Hearing Aid Fitter
139 CENTRE ST, SUITE 803
NEW YORK, NY 10013
Internal Medicine
139 CENTRE ST, SUITE 802
NEW YORK, NY 10013
Pediatrics
139 CENTRE ST, SUITE 506
NEW YORK, NY 10013
Internal Medicine
139 CENTRE ST, ROOM 603
NEW YORK, NY 10013
Surgery
139 CENTRE ST, SUITE 512
NEW YORK, NY 10013
Internal Medicine (Pulmonary Disease)
139 CENTRE ST, SUITE 802
NEW YORK, NY 10013
Internal Medicine
139 CENTRE ST, ROOM 603
NEW YORK, NY 10013
Pharmacy (Community/Retail Pharmacy)
139 CENTRE ST, UNIT 104
NEW YORK, NY 10013
Pediatrics
139 CENTRE ST, SUITE 314
NEW YORK, NY 10013
Clinic/Center (Medical Specialty)
139 CENTRE ST, RM 302
NEW YORK, NY 10013
Internal Medicine
139 CENTRE ST, 604
NEW YORK, NY 10013
Internal Medicine (Pulmonary Disease)
139 CENTRE ST, SUITE 802
NEW YORK, NY 10013
Anesthesiology
139 CENTRE ST, SUITE 609
NEW YORK, NY 10013
Dentist (General Practice)
139 CENTRE ST, SUITE 602
NEW YORK, NY 10013
Pediatrics
139 CENTRE ST, SUITE 618
NEW YORK, NY 10013

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104020411, enumerated as an "individual" on June 12, 2007.

The provider is located at 139 CENTRE ST 610 NEW YORK, NY 10013 and the phone number is (212) 966-5880.

Optometrist with taxonomy code 152W00000X.