OPHELIA MEI-CHUANG CHEN M.D.
NPI 1649471715
Specialist in Pasadena, CA

NPI Status: Active since May 29, 2007

Contact Information

94 N MADISON AVE
PASADENA, CA
ZIP 91101
Phone: (626) 792-4171
Fax: (626) 792-2328

Get Directions Write a Review

  • Individual
  • Female
  • Specialist

About OPHELIA CHEN

This page provides the complete NPI Profile along with additional information for Ophelia Chen, a provider established in Pasadena, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1649471715 assigned on May 2007. The practitioner's primary taxonomy code is 174400000X with license number A74268 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1649471715
Provider Name
OPHELIA MEI-CHUANG CHEN M.D.
Gender
Female
Entity Type
Individual
Location Address
94 N MADISON AVE PASADENA, CA 91101
Location Phone
(626) 792-4171
Location Fax
(626) 792-2328
Mailing Address
1459 BEDFORD RD SAN MARINO, CA 91108
Mailing Phone
(626) 792-4171
Mailing Fax
(626) 792-2328
Is Sole Proprietor?
Yes
Enumeration Date
05-29-2007
Last Update Date
07-08-2007
Code Navigator

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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
A74268
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Reviews for OPHELIA MEI-CHUANG CHEN M.D.

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 1649471715, 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 8 + 7 + 2 + 7 + 2 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1649471715.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Allergy & Immunology
94 N MADISON AVE
PASADENA, CA 91101
Specialist
94 N MADISON AVE
PASADENA, CA 91101
Allergy & Immunology
94 N MADISON AVE
PASADENA, CA 91101
Allergy & Immunology
94 N MADISON AVE
PASADENA, CA 91101
Allergy & Immunology
94 N MADISON AVE
PASADENA, CA 91101

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649471715, enumerated as an "individual" on May 29, 2007.

The provider is located at 94 N MADISON AVE PASADENA, CA 91101 and the phone number is (626) 792-4171.

Specialist with taxonomy code 174400000X.