LEONARD MARK GUTNIK M.D.
NPI 1841265543
Internal Medicine in Sioux Falls, SD

NPI Status: Active since February 17, 2006

Contact Information

6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD
ZIP 57108
Phone: (605) 504-1700

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  • Individual
  • Male
  • Internal Medicine

About LEONARD GUTNIK

This page provides the complete NPI Profile along with additional information for Leonard Gutnik, an internist established in Sioux Falls, South Dakota with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1841265543 assigned on February 2006. The practitioner's primary taxonomy code is 207R00000X with license number 2478 (SD). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI
1841265543
Provider Name
LEONARD MARK GUTNIK M.D.
Gender
Male
Entity Type
Individual
Location Address
6100 S LOUISE AVE STE 1120 SIOUX FALLS, SD 57108
Location Phone
(605) 504-1700
Mailing Address
PO BOX 86370 SIOUX FALLS, SD 57118
Mailing Phone
(605) 322-7510
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
02-17-2006
Last Update Date
10-31-2019
Code Navigator

An internist like Leonard Gutnik 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

Secondary Locations

  • 1301 S. Cliff Ave Ste 400
    Sioux Falls, SD 57105
    (605) 322-5750

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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
2478
License State
SD
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive 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.

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.

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
370624200OTHER (01)SDDEPT OF LABOR
46022474335MEDICAID (05)NE 
57105F002OTHER (01)SDWPS TRICARE
HP32254OTHER (01)SDHEALTHPARTNERS
24850OTHER (01)SDSANFORD HEALTH PLAN
30B75GUOTHER (01)MNCC SYSTEMS/ BLUE PLUS
0005586OTHER (01)SDBLUE CROSS
110211778OTHER (01)SDRR MEDICARE
12262MEDICAID (05)ND 
914505200MEDICAID (05)MN 
1526OTHER (01)SDMIDLANDS CHOICE
2478OTHER (01)SDDAKOTACARE
6000623MEDICAID (05)SD 
769201017553OTHER (01)SDPREFERRED ONE
92411422901OTHER (01)MNPRIMEWEST
0404413OTHER (01)SDMEDICA
23146OTHER (01)SDARAZ/ AMERICA'S PPO
2920900MEDICAID (05)IA 

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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 1841265543, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
2
Doubled → 4
Pos 6
6
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
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 4 → 8 2 → 4 5 → 10 → 1 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 4 + 6 + 1 + 0 + 5 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1841265543.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Nurse Practitioner
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Nurse Practitioner (Family)
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Nurse Practitioner (Family)
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Nurse Practitioner (Family)
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Nurse Practitioner (Adult Health)
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108
Internal Medicine
6100 S LOUISE AVE STE 1120
SIOUX FALLS, SD 57108

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841265543, enumerated as an "individual" on February 17, 2006.

The provider is located at 6100 S LOUISE AVE STE 1120 SIOUX FALLS, SD 57108 and the phone number is (605) 504-1700.

Internal Medicine with taxonomy code 207R00000X.

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