THOMAS OTTO MD
NPI 1417979113
Orthopaedic Surgery in Saint Louis, MO

NPI Status: Active since July 24, 2006

Contact Information

1201 S GRAND BLVD
SAINT LOUIS, MO
ZIP 63104
Phone: (314) 977-5350
Fax: (314) 977-1629

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

Individual
Male
Orthopaedic Surgery

About THOMAS OTTO

This page provides the complete NPI Profile along with additional information for Thomas Otto, a provider established in Saint Louis, Missouri with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1417979113 assigned on July 2006. The practitioner's primary taxonomy code is 207X00000X with license number R9866 (MO). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI: 1417979113
Provider Name: THOMAS OTTO MD
Gender: Male
Entity Type: Individual
Location Address: 1201 S GRAND BLVD SAINT LOUIS, MO 63104
Location Phone: (314) 977-5350
Location Fax: (314) 977-1629
Mailing Address: 3691 RUTGER AVE PROVIDER ENROLLMENT ST LOUIS, MO 63110
Mailing Phone: (314) 977-4440
Is Sole Proprietor?: No
Enumeration Date: 07-24-2006
Last Update Date: 02-24-2021
Code Navigator

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: Orthopaedic Surgery
Taxonomy Code: 207X00000X
Type: Allopathic & Osteopathic Physicians
License No.: R9866
License State: MO
Taxonomy Description: An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

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 1417979113, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 2

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 2

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 1 → 2 9 → 18 → 9 9 → 18 → 9 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 2 + 7 + 1 + 8 + 7 + 1 + 8 + 1 + 2 + 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 1417979113.