WILLIAM C JOHNSTON MD
NPI 1578581716
Preventive Medicine - Occupational Medicine in Batavia, IL

NPI Status: Active since July 17, 2006

Contact Information

2500 W FABYAN PKWY
BATAVIA, IL
ZIP 60510
Phone: (630) 879-2110

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  • Individual
  • Male
  • Preventive Medicine
  • Occupational Medicine

About WILLIAM JOHNSTON

This page provides the complete NPI Profile along with additional information for William Johnston, a provider established in Batavia, Illinois with a medical specialization in Preventive Medicine, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1578581716 assigned on July 2006. The practitioner's primary taxonomy code is 2083X0100X with license number 036-070736 (IL). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1578581716
Provider Name
WILLIAM C JOHNSTON MD
Gender
Male
Entity Type
Individual
Location Address
2500 W FABYAN PKWY BATAVIA, IL 60510
Location Phone
(630) 879-2110
Mailing Address
2357 SEQUOIA DR AURORA, IL 60506
Mailing Phone
(630) 859-6800
Is Sole Proprietor?
No
Enumeration Date
07-17-2006
Last Update Date
02-21-2017
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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

Preventive Medicine Occupational Medicine

Taxonomy Code
2083X0100X
Type
Allopathic & Osteopathic Physicians
License No.
036-070736
License State
IL
Taxonomy Description
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

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)
1207P00000XAllopathic & Osteopathic Physicians

Emergency Medicine

036-070736 (IL)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
036070736MEDICAID (05)IL 
0727500001MEDICARE NSC (07)IL 
C42621MEDICARE UPIN (02) 

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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 1578581716, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
5
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
8
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
7
Unchanged
Pos 9
1
Doubled → 2
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 7 → 14 → 5 5 → 10 → 1 1 → 2 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 4 + 8 + 1 + 0 + 8 + 2 + 7 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1578581716.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

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Physical Therapist
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Clinic/Center (Multi-Specialty)
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Psychologist (Clinical)
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Pediatrics
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Family Medicine
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Family Medicine
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Internal Medicine
2500 W FABYAN PKWY
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Physical Therapist
2500 W FABYAN PKWY
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Internal Medicine
2500 W FABYAN PKWY
BATAVIA, IL 60510
Physician Assistant (Medical)
2500 W FABYAN PKWY
BATAVIA, IL 60510
Psychologist (Clinical)
2500 W FABYAN PKWY
BATAVIA, IL 60510
Family Medicine
2500 W FABYAN PKWY
BATAVIA, IL 60510
Family Medicine
2500 W FABYAN PKWY
BATAVIA, IL 60510
Physical Therapist
2500 W FABYAN PKWY
BATAVIA, IL 60510
Physical Therapist
2500 W FABYAN PKWY
BATAVIA, IL 60510
Internal Medicine
2500 W FABYAN PKWY
BATAVIA, IL 60510
Clinic/Center (Multi-Specialty)
2500 W FABYAN PKWY
BATAVIA, IL 60510

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1578581716, enumerated as an "individual" on July 17, 2006.

The provider is located at 2500 W FABYAN PKWY BATAVIA, IL 60510 and the phone number is (630) 879-2110.

Preventive Medicine with taxonomy code 2083X0100X and a focus in Occupational Medicine.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.