DR. WILLIAM F. JOHNSON MD
NPI 1598783243
Internal Medicine - Gastroenterology in Evansville, IN

NPI Status: Active since July 18, 2006

Contact Information

801 SAINT MARYS DR
SUITE 205 W
EVANSVILLE, IN
ZIP 47714
Phone: (812) 477-6103
Fax: (812) 477-4897

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  • Individual
  • Male
  • Internal Medicine
  • Gastroenterology

About WILLIAM JOHNSON

This page provides the complete NPI Profile along with additional information for William Johnson, an internist established in Evansville, Indiana with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1598783243 assigned on July 2006. The practitioner's primary taxonomy code is 207RG0100X with license number 01026896 (IN). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1598783243
Provider Name
DR. WILLIAM F. JOHNSON MD
Gender
Male
Entity Type
Individual
Location Address
801 SAINT MARYS DR SUITE 205 W EVANSVILLE, IN 47714
Location Phone
(812) 477-6103
Location Fax
(812) 477-4897
Mailing Address
801 SAINT MARYS DR SUITE 205 W EVANSVILLE, IN 47714
Mailing Phone
(812) 477-6103
Mailing Fax
(812) 477-4897
Is Sole Proprietor?
Yes
Enumeration Date
07-18-2006
Last Update Date
02-25-2013
Code Navigator

An internist like William Johnson is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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

Internal Medicine Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
License No.
01026896
License State
IN
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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
E05853MEDICARE UPIN (02)IN 
100245890AMEDICAID (05)IN 
845230AMEDICARE ID-TYPE UNSPECIFIED (04)IN 

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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 1598783243, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).

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
9
Doubled → 18 → 1 + 8
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
8
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
Check
3
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 9 → 18 → 9 7 → 14 → 5 3 → 6 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 1 + 4 + 8 + 6 + 2 + 8 + 24 = 77

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

The next multiple of ten after 77 is 80. The difference is the calculated check digit.

80 - 77 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1598783243.

Other Providers at the Same Location


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

Psychiatry & Neurology (Neurology)
801 SAINT MARYS DR, STE 303
EVANSVILLE, IN 47714
Neurological Surgery
801 SAINT MARYS DR, STE 400
EVANSVILLE, IN 47714
Obstetrics & Gynecology
801 SAINT MARYS DR, SUITE 201 EAST
EVANSVILLE, IN 47714
Orthopaedic Surgery
801 SAINT MARYS DR, STE 305E
EVANSVILLE, IN 47714
Family Medicine
801 SAINT MARYS DR, SUITE 110-E
EVANSVILLE, IN 47714
Internal Medicine
801 SAINT MARYS DR, SUITE 302-E
EVANSVILLE, IN 47714
Family Medicine
801 SAINT MARYS DR, SUITE 110-E
EVANSVILLE, IN 47714
Obstetrics & Gynecology
801 SAINT MARYS DR, SUITE 309E
EVANSVILLE, IN 47714
Internal Medicine (Gastroenterology)
801 SAINT MARYS DR, SUITE 205 W
EVANSVILLE, IN 47714
Plastic Surgery
801 SAINT MARYS DR, MEDICAL BLDG. EAST, SUITE 300
EVANSVILLE, IN 47714
Family Medicine
801 SAINT MARYS DR, SUITE 110-E
EVANSVILLE, IN 47714
Internal Medicine
801 SAINT MARYS DR, SUITE 302-E
EVANSVILLE, IN 47714
Dietitian, Registered
801 SAINT MARYS DR, SUITE 205W
EVANSVILLE, IN 47714
Internal Medicine (Gastroenterology)
801 SAINT MARYS DR, SUITE 205 W
EVANSVILLE, IN 47714
Surgery
801 SAINT MARYS DR, SUITE 205 W
EVANSVILLE, IN 47714
Clinic/Center (Federally Qualified Health Center (FQHC))
801 SAINT MARYS DR, SUITE 309
EVANSVILLE, IN 47714
Family Medicine
801 SAINT MARYS DR, SUITE 110-E
EVANSVILLE, IN 47714
Clinical Nurse Specialist (Adult Health)
801 SAINT MARYS DR, STE 400
EVANSVILLE, IN 47714
Anesthesiology (Pain Medicine)
801 SAINT MARYS DR, STE 205W
EVANSVILLE, IN 47714
Nurse Practitioner (Family)
801 SAINT MARYS DR, SUITE 205W
EVANSVILLE, IN 47714

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598783243, enumerated as an "individual" on July 18, 2006.

The provider is located at 801 SAINT MARYS DR SUITE 205 W EVANSVILLE, IN 47714 and the phone number is (812) 477-6103.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

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