DR. JOHN PAUL ZIMMERMANN M.D.
NPI 1558380154
Specialist in Napa, CA

NPI Status: Active since July 18, 2006

Contact Information

3443 VILLA LN STE 10
NAPA, CA
ZIP 94558
Phone: (707) 258-6077
Fax: (707) 253-7182

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  • Individual
  • Male
  • Specialist

About JOHN ZIMMERMANN

This page provides the complete NPI Profile along with additional information for John Zimmermann, a provider established in Napa, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1558380154 assigned on July 2006. The practitioner's primary taxonomy code is 174400000X with license number G-26664 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1558380154
Provider Name
DR. JOHN PAUL ZIMMERMANN M.D.
Gender
Male
Entity Type
Individual
Location Address
3443 VILLA LN STE 10 NAPA, CA 94558
Location Phone
(707) 258-6077
Location Fax
(707) 253-7182
Mailing Address
3443 VILLA LN STE 10 NAPA, CA 94558
Mailing Phone
(707) 258-6077
Mailing Fax
(707) 253-7182
Is Sole Proprietor?
Yes
Enumeration Date
07-18-2006
Last Update Date
07-08-2007
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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.
G-26664
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.

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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 1558380154, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 6 + 8 + 0 + 1 + 1 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1558380154.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Specialist
3443 VILLA LN STE 10
NAPA, CA 94558
Internal Medicine
3443 VILLA LN STE 10
NAPA, CA 94558
Internal Medicine
3443 VILLA LN STE 10
NAPA, CA 94558
Specialist
3443 VILLA LN STE 10
NAPA, CA 94558

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558380154, enumerated as an "individual" on July 18, 2006.

The provider is located at 3443 VILLA LN STE 10 NAPA, CA 94558 and the phone number is (707) 258-6077.

Specialist with taxonomy code 174400000X.