DR. JOHN S ZIMMERMAN D.C., L.AC.
NPI 1417985920
Nurse Practitioner - Family in Diamond Bar, CA
NPI Status: Active since June 30, 2006
Contact Information
566 N DIAMOND BAR BLVD
DIAMOND BAR, CA
ZIP 91765
Phone: (909) 861-2611
Fax: (909) 860-2314
- Individual
- Male
- Nurse Practitioner
- Family
About JOHN ZIMMERMAN
This page provides the complete NPI Profile along with additional information for John Zimmerman, a provider established in Diamond Bar, California with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1417985920 assigned on June 2006. The practitioner's primary taxonomy code is 363LF0000X with license number 95039309 (CA). The provider is registered as an individual and his NPI record was last updated May 2026.
- NPI
- 1417985920
- Provider Name
- DR. JOHN S ZIMMERMAN D.C., L.AC.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 566 N DIAMOND BAR BLVD DIAMOND BAR, CA 91765
- Location Phone
- (909) 861-2611
- Location Fax
- (909) 860-2314
- Mailing Address
- 566 N DIAMOND BAR BLVD DIAMOND BAR, CA 91765
- Mailing Phone
- (909) 861-2611
- Mailing Fax
- (909) 860-2314
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-30-2006
- Last Update Date
- 05-04-2026
- Code Navigator
A nurse practitioner (NP) like John Zimmerman is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.
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
Nurse Practitioner Family
- Taxonomy Code
- 363LF0000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- 95039309
- License State
- CA
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 | 111N00000X | Chiropractic Providers | Chiropractor | DC26261 (CA) |
| 2 | 163WG0000X | Nursing Service Providers | Registered Nurse | 95212015 (CA) |
| 3 | 171100000X | Other Service Providers | Acupuncturist | 13160 (CA) |
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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 1417985920, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1417985920, enumerated as an "individual" on June 30, 2006.
The provider is located at 566 N DIAMOND BAR BLVD DIAMOND BAR, CA 91765 and the phone number is (909) 861-2611.
Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.
