DANNY HUM O.D.
NPI 1700930294
Optometrist in Union City, CA

NPI Status: Active since January 22, 2007

Contact Information

3553 WHIPPLE RD
UNION CITY, CA
ZIP 94587
Phone: (510) 454-1000

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  • Individual
  • Male
  • Optometrist

About DANNY HUM

This page provides the complete NPI Profile along with additional information for Danny Hum, a provider established in Union City, California with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1700930294 assigned on January 2007. The practitioner's primary taxonomy code is 152W00000X with license number OPT6961T (CA). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1700930294
Provider Name
DANNY HUM O.D.
Gender
Male
Entity Type
Individual
Location Address
3553 WHIPPLE RD UNION CITY, CA 94587
Location Phone
(510) 454-1000
Mailing Address
3553 WHIPPLE RD UNION CITY, CA 94587
Mailing Phone
(510) 454-1000
Is Sole Proprietor?
No
Enumeration Date
01-22-2007
Last Update Date
08-03-2015
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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.
OPT6961T
License State
CA
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 1700930294, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
0
Doubled → 0
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 9 → 18 → 9 0 → 0 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 0 + 0 + 1 + 8 + 3 + 0 + 2 + 1 + 8 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1700930294.

Other Providers at the Same Location


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

Family Medicine
3553 WHIPPLE RD
UNION CITY, CA 94587
Otolaryngology
3553 WHIPPLE RD
UNION CITY, CA 94587
Nurse Practitioner (Gerontology)
3553 WHIPPLE RD, BUILDING B, MED 1
UNION CITY, CA 94587
Marriage & Family Therapist
3553 WHIPPLE RD
UNION CITY, CA 94587
Speech-Language Pathologist
3553 WHIPPLE RD
UNION CITY, CA 94587
Audiologist
3553 WHIPPLE RD
UNION CITY, CA 94587
Nurse Practitioner (Family)
3553 WHIPPLE RD
UNION CITY, CA 94587
Nurse Practitioner (Family)
3553 WHIPPLE RD
UNION CITY, CA 94587
Optometrist
3553 WHIPPLE RD, BUILDING B
UNION CITY, CA 94587
Audiologist
3553 WHIPPLE RD, BUILDING B, 2ND FLOOR
UNION CITY, CA 94587
Social Worker (Clinical)
3553 WHIPPLE RD
UNION CITY, CA 94587
Pharmacist
3553 WHIPPLE RD, 3RD FLOOR, MED STATION #4
UNION CITY, CA 94587
Internal Medicine
3553 WHIPPLE RD
UNION CITY, CA 94587
Ophthalmology
3553 WHIPPLE RD
UNION CITY, CA 94587
Dermatology
3553 WHIPPLE RD
UNION CITY, CA 94587
Obstetrics & Gynecology
3553 WHIPPLE RD
UNION CITY, CA 94587
Internal Medicine
3553 WHIPPLE RD
UNION CITY, CA 94587
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3553 WHIPPLE RD
UNION CITY, CA 94587
Counselor (Mental Health)
3553 WHIPPLE RD
UNION CITY, CA 94587
Nurse Practitioner (Adult Health)
3553 WHIPPLE RD
UNION CITY, CA 94587

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1700930294, enumerated as an "individual" on January 22, 2007.

The provider is located at 3553 WHIPPLE RD UNION CITY, CA 94587 and the phone number is (510) 454-1000.

Optometrist with taxonomy code 152W00000X.