CHAO GU
NPI 1063370666
Acupuncturist in Sunnyvale, CA
NPI Status: Active since January 13, 2026
Contact Information
1137 TASMAN DR
SUNNYVALE, CA
ZIP 94089
Phone: (541) 220-6241
- Individual
- Female
- Acupuncturist
About CHAO GU
This page provides the complete NPI Profile along with additional information for Chao Gu, a provider established in Sunnyvale, California with a medical specialization in Acupuncturist. The healthcare provider is registered in the NPI registry with number 1063370666 assigned on January 2026. The practitioner's primary taxonomy code is 171100000X with license number 20474 (CA). The provider is registered as an individual and her NPI record was last updated April 2026.
- NPI
- 1063370666
- Provider Name
- CHAO GU
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1137 TASMAN DR SUNNYVALE, CA 94089
- Location Phone
- (541) 220-6241
- Mailing Address
- 1137 TASMAN DR SUNNYVALE, CA 94089
- Mailing Phone
- (541) 220-6241
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-13-2026
- Last Update Date
- 04-25-2026
- Code Navigator
An acupuncturist like Chao Gu specializes in diagnosing, treating, and preventing some diseases using acupuncture needles. Acupuncturists carefully insert and manipulate fine, solid needles at specific points on the skin to achieve therapeutic benefits. Modern medicine explains that acupuncture works by stimulating the nervous system, causing the body to release certain chemicals, including endorphins, in the muscles, spinal cord, and brain. These chemicals assist the body in managing and regulating pain. Other commonly used treatment methods in acupuncture include herbs or mixtures of herbs, and acupressure, which involves massaging acupuncture points instead of using needles.
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
Acupuncturist
- Taxonomy Code
- 171100000X
- Type
- Other Service Providers
- License No.
- 20474
- License State
- CA
- Taxonomy Description
- An acupuncturist is a person who performs ancient therapy for alleviation of pain, anesthesia and treatment of some diseases. Acupuncturists use long, fine needles inserted into specific points in order to treat painful conditions or produce anesthesia.
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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 1063370666, 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.
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 54 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 3 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1063370666, enumerated as an "individual" on January 13, 2026.
The provider is located at 1137 TASMAN DR SUNNYVALE, CA 94089 and the phone number is (541) 220-6241.
Acupuncturist with taxonomy code 171100000X.
