Quality Rating: 100 out of 100 score
NPI Status: Active since August 22, 2005
18350 Roscoe Blvd
Northridge,
Post Code: 91325
Phone: (818) 349-8300
Fax: (818) 349-2214
Andrew Chang M.d. is a Ophthalmology in Northridge, . Andrew Chang M.d. practices all healthcare services and medical treatments related to Ophthalmology. The NPI Number for Andrew Chang M.d. is 1003808494. The last update date is 2008-04-25.
Andrew Chang M.d.'s current location address is 18350 Roscoe Blvd, Northridge, . You can contact this provider via phone number (818) 349-8300 and fax number (818) 349-2214. The mailing address for Andrew Chang M.d. is 18350 Roscoe Blvd, Northridge, . To know further, please read the information below!
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.
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|
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The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 0 | 0 | 3 | 8 | 0 | 8 | 4 | 9 | 4 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 0 | 0 | 3 | 16 | 0 | 16 | 4 | 18 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. 200316016418 | |||||||||
| 2 + 0 + 0 + 3 + 1 + 6 + 0 + 1 + 6 + 4 + 1 + 8 + 24 = 56 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 56 = 4 | 4 | ||||||||
The NPI number 1003808494 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.
The following 5 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1003808387 | DONNA JEANNE SUNDALE Individual |
Pharmacist |
10038 MEADOW WAY TRUCKEE, California (CA) 530-587-2273 |
| 1003808338 | RAYMOND FAY Individual |
Urology |
929 CLAY ST SAN FRANCISCO, California (CA) 415-392-9690 |
| 1003807991 | EAST VALLEY HOSPITAL MEDICAL CENTER EAST VALLEY GLENDORA HOSPITAL, L.P. Organization |
General Acute Care Hospital |
150 W ROUTE 66 GLENDORA, California (CA) 626-852-5050 |
| 1003807926 | KELLY ANN MASON Individual |
Speech-Language Pathologist, |
3554 BALLANTYNE DR PLEASANTON, California (CA) 925-484-1508 |
| 1003807876 | ANDREW JEREMIAH LEVINE Individual |
Psychologist |
801 CRESCENT WAY STE 3 ARCATA, California (CA) 562-477-5463 |