SHERIDA E TOLLEFSEN MD
NPI 1396850749
Pediatrics - Pediatric Endocrinology in St. Louis, MO

NPI Status: Active since August 19, 2006

Contact Information

1465 S GRAND
ST. LOUIS, MO
ZIP 63104
Phone: (314) 577-5684
Fax: (314) 268-6448

Get Directions Write a Review

  • Individual
  • Female
  • Pediatrics
  • Pediatric Endocrinology

About SHERIDA TOLLEFSEN

This page provides the complete NPI Profile along with additional information for Sherida Tollefsen, a pediatrician established in St. Louis, Missouri with a medical specialization in Pediatrics, focusing in pediatric endocrinology . The healthcare provider is registered in the NPI registry with number 1396850749 assigned on August 2006. The practitioner's primary taxonomy code is 2080P0205X with license number RIB88 (MO). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1396850749
Provider Name
SHERIDA E TOLLEFSEN MD
Gender
Female
Entity Type
Individual
Location Address
1465 S GRAND ST. LOUIS, MO 63104
Location Phone
(314) 577-5684
Location Fax
(314) 268-6448
Mailing Address
3691 RUTGER AVE PROVIDER ENROLLMENT ST LOUIS, MO 63110
Mailing Phone
(314) 977-4440
Is Sole Proprietor?
No
Enumeration Date
08-19-2006
Last Update Date
01-09-2008
Code Navigator

A pediatrician like Sherida Tollefsen is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, 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

Pediatrics Pediatric Endocrinology

Taxonomy Code
2080P0205X
Type
Allopathic & Osteopathic Physicians
License No.
RIB88
License State
MO
Taxonomy Description
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.

Reviews for SHERIDA E TOLLEFSEN MD

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1396850749, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
3
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
4
Doubled → 8
Check
9
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 8 → 16 → 7 0 → 0 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 8 + 6 + 1 + 6 + 5 + 0 + 7 + 8 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1396850749.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Nurse Practitioner (Pediatrics)
1465 S GRAND
ST LOUIS, MO 63104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1396850749, enumerated as an "individual" on August 19, 2006.

The provider is located at 1465 S GRAND ST. LOUIS, MO 63104 and the phone number is (314) 577-5684.

Pediatrics with taxonomy code 2080P0205X and a focus in Pediatric Endocrinology.