SARAH JUNE KELLER M.D.
NPI 1083815328
Internal Medicine - Rheumatology in Sturgeon Bay, WI

NPI Status: Active since May 31, 2007

Contact Information

323 S 18TH AVE
STURGEON BAY, WI
ZIP 54235
Phone: (920) 746-3501

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Internal Medicine
Rheumatology

About SARAH KELLER

This page provides the complete NPI Profile along with additional information for Sarah Keller, an internist established in Sturgeon Bay, Wisconsin with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1083815328 assigned on May 2007. The practitioner's primary taxonomy code is 207RR0500X. The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI: 1083815328
Provider Name: SARAH JUNE KELLER M.D.
Gender: Female
Entity Type: Individual
Location Address: 323 S 18TH AVE STURGEON BAY, WI 54235
Location Phone: (920) 746-3501
Mailing Address: 836 WISCONSIN AVE OAK PARK, IL 60304
Mailing Phone: (708) 763-8121
Is Sole Proprietor?: No
Enumeration Date: 05-31-2007
Last Update Date: 07-08-2007
Code Navigator

An internist like Sarah Keller 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 Rheumatology
Taxonomy Code: 207RR0500X
Type: Allopathic & Osteopathic Physicians
License State: IL
Taxonomy Description: An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

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 1083815328, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 4

Check

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 8 → 16 → 7 8 → 16 → 7 5 → 10 → 1 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 6 + 3 + 1 + 6 + 1 + 1 + 0 + 3 + 4 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1083815328.