DR. DAVID Z CHU M.D.
NPI 1477553485
Surgery - Surgical Oncology in San Gabriel, CA
NPI Status: Active since August 01, 2005
Contact Information
416 W LAS TUNAS DR
SAN GABRIEL, CA
ZIP 91776
Phone: (626) 300-8880
Fax: (626) 300-8811
- Individual
- Male
- Surgery
- Surgical Oncology
About DAVID CHU
This page provides the complete NPI Profile along with additional information for David Chu, a provider established in San Gabriel, California with a medical specialization in Surgery, focusing in surgical oncology . The healthcare provider is registered in the NPI registry with number 1477553485 assigned on August 2005. The practitioner's primary taxonomy code is 2086X0206X with license number G32609 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1477553485
- Provider Name
- DR. DAVID Z CHU M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 416 W LAS TUNAS DR SAN GABRIEL, CA 91776
- Location Phone
- (626) 300-8880
- Location Fax
- (626) 300-8811
- Mailing Address
- P.O. BOX 386 SAN GABRIEL, CA 91778
- Mailing Phone
- (626) 300-8880
- Mailing Fax
- (626) 300-8811
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-01-2005
- Last Update Date
- 09-11-2025
- 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
Surgery Surgical Oncology
- Taxonomy Code
- 2086X0206X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G32609
- License State
- CA
- Taxonomy Description
- A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 208600000X | Allopathic & Osteopathic Physicians | Surgery | G32609 (CA) |
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
New patient office or other outpatient visit, 45-59 minutes
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
This service was performed 26 times for 26 patientsReviews for DR. DAVID Z CHU M.D.
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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 1477553485, 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 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 65 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1477553485, enumerated as an "individual" on August 01, 2005.
The provider is located at 416 W LAS TUNAS DR SAN GABRIEL, CA 91776 and the phone number is (626) 300-8880.
Surgery with taxonomy code 2086X0206X and a focus in Surgical Oncology.
