TIFFANY CHIEN
NPI 1861055576
Dentist - Endodontics in Mountain View, CA

NPI Status: Active since April 17, 2019

Contact Information

1580 W EL CAMINO REAL STE 3
MOUNTAIN VIEW, CA
ZIP 94040
Phone: (650) 625-8337

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  • Individual
  • Female
  • Dentist
  • Endodontics

About TIFFANY CHIEN

This page provides the complete NPI Profile along with additional information for Tiffany Chien, a provider established in Mountain View, California with a medical specialization in Dentist, focusing in endodontics . The healthcare provider is registered in the NPI registry with number 1861055576 assigned on April 2019. The practitioner's primary taxonomy code is 1223E0200X with license number 107192 (CA). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1861055576
Provider Name
TIFFANY CHIEN
Gender
Female
Entity Type
Individual
Location Address
1580 W EL CAMINO REAL STE 3 MOUNTAIN VIEW, CA 94040
Location Phone
(650) 625-8337
Mailing Address
1580 W EL CAMINO REAL STE 3 MOUNTAIN VIEW, CA 94040
Mailing Phone
(650) 625-8337
Is Sole Proprietor?
No
Enumeration Date
04-17-2019
Last Update Date
01-17-2023
Code Navigator

A dentist like Tiffany Chien is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist Endodontics

Taxonomy Code
1223E0200X
Type
Dental Providers
License No.
107192
License State
CA
Taxonomy Description
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.

Reviews for TIFFANY CHIEN

  • 5 out of 5 stars - Review by Janice ***** on April 08, 2026

    Dr. Tiffany Chien is an incredibly meticulous and thorough endodontist. She takes the time to explain every detail of the treatment process beforehand. Despite being young, she has a very steady hand and demonstrates great professional expertise. Her approach to anesthesia is extremely careful—I didn't feel any discomfort during the procedure. I highly recommend Dr.Tiffany for root canal treatment

  • 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 1861055576, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

    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
    8
    Unchanged
    Pos 3
    6
    Doubled → 12 → 1 + 2
    Pos 4
    1
    Unchanged
    Pos 5
    0
    Doubled → 0
    Pos 6
    5
    Unchanged
    Pos 7
    5
    Doubled → 10 → 1 + 0
    Pos 8
    5
    Unchanged
    Pos 9
    7
    Doubled → 14 → 1 + 4
    Check
    6
    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 6 → 12 → 3 0 → 0 5 → 10 → 1 7 → 14 → 5

    Step 2: Add all digits plus the NPI constant

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

    2 + 8 + 1 + 2 + 1 + 0 + 5 + 1 + 0 + 5 + 1 + 4 + 24 = 54

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

    The next multiple of ten after 54 is 60. The difference is the calculated check digit.

    60 - 54 = 6
    This NPI is valid
    The calculated check digit is 6, which matches the last digit of 1861055576.

    Frequently Asked Questions

    The NPI number assigned to this healthcare provider is 1861055576, enumerated as an "individual" on April 17, 2019.

    The provider is located at 1580 W EL CAMINO REAL STE 3 MOUNTAIN VIEW, CA 94040 and the phone number is (650) 625-8337.

    Dentist with taxonomy code 1223E0200X and a focus in Endodontics.