VIVIAN CHANG
NPI 1083177265
Pediatrics - Neonatal-Perinatal Medicine in Orange, CA
NPI Status: Active since April 13, 2019
Contact Information
101 THE CITY DR S
ORANGE, CA
ZIP 92868
Phone: (714) 456-8888
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Female
- Pediatrics
- Neonatal-Perinatal Medicine
- PECOS Enrolled
About VIVIAN CHANG
This page provides the complete NPI Profile along with additional information for Vivian Chang, a pediatrician established in Orange, California with a medical specialization in Pediatrics, focusing in neonatal-perinatal medicine . The healthcare provider is registered in the NPI registry with number 1083177265 assigned on April 2019. The practitioner's primary taxonomy code is 2080N0001X with license number A200305 (CA). The provider is registered as an individual and her NPI record was last updated June 2026.
- NPI
- 1083177265
- Provider Name
- VIVIAN CHANG
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 101 THE CITY DR S ORANGE, CA 92868
- Location Phone
- (714) 456-8888
- Mailing Address
- 101 THE CITY DR S ORANGE, CA 92868
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-13-2019
- Last Update Date
- 06-24-2026
- Code Navigator
A pediatrician like Vivian Chang is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.
Location Map
Secondary Locations
- 1201 W La Veta Ave
Orange, CA 92868
(714) 203-2181
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
Pediatrics Neonatal-Perinatal Medicine
- Taxonomy Code
- 2080N0001X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A200305
- License State
- CA
- Taxonomy Description
- A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Medicare Participation & PECOS Enrollment Status
Vivian Chang is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Durable Medical Equipment (DME) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: Yes
Reviews for VIVIAN CHANG
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 1083177265, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 55 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 19 providers are registered at the same or a nearby location.
ORANGE, CA 92868
ORANGE, CA 92868
ORANGE, CA 92868
ORANGE, CA 92868
ORANGE, CA 92868
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1083177265, enumerated as an "individual" on April 13, 2019.
The provider is located at 101 THE CITY DR S ORANGE, CA 92868 and the phone number is (714) 456-8888.
Pediatrics with taxonomy code 2080N0001X and a focus in Neonatal-Perinatal Medicine.
