DR. SAMEERA ZUBIN MAHAJAN MBBS
NPI 1720979883
Pathology - Anatomic Pathology & Clinical Pathology in St. Louis, MO

NPI Status: Active since July 15, 2025

Contact Information

BARNES-JEWISH HOSPITAL
4590 NASH WAY
ST. LOUIS, MO
ZIP 63110
Phone: (872) 229-7799

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  • Individual
  • Female
  • Pathology
  • Anatomic Pathology & Clinical Pathology

About SAMEERA MAHAJAN

This page provides the complete NPI Profile along with additional information for Sameera Mahajan, a provider established in St. Louis, Missouri with a medical specialization in Pathology, focusing in anatomic pathology & clinical pathology . The healthcare provider is registered in the NPI registry with number 1720979883 assigned on July 2025. The practitioner's primary taxonomy code is 207ZP0102X with license number 2025025690 (MO). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1720979883
Provider Name
DR. SAMEERA ZUBIN MAHAJAN MBBS
Other Name
DR. SAMEERA RAJENDRA MEHTA MBBS
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
BARNES-JEWISH HOSPITAL 4590 NASH WAY ST. LOUIS, MO 63110
Location Phone
(872) 229-7799
Mailing Address
1240 GREENFIELD PL APT 202 O FALLON, IL 62269
Mailing Phone
(872) 229-7799
Is Sole Proprietor?
No
Enumeration Date
07-15-2025
Last Update Date
07-15-2025
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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

Pathology Anatomic Pathology & Clinical Pathology

Taxonomy Code
207ZP0102X
Type
Allopathic & Osteopathic Physicians
License No.
2025025690
License State
MO
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

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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 1720979883, 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 2 → 4 9 → 18 → 9 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 1 + 8 + 7 + 1 + 8 + 8 + 1 + 6 + 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 1720979883.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Internal Medicine (Nephrology)
BARNES-JEWISH HOSPITAL, 1 BARNES-JEWISH PLAZA
ST LOUIS, MO 63110
Student in an Organized Health Care Education/Training Program
BARNES-JEWISH HOSPITAL, 4590 CHILDREN'S PLACE MS 90-29-928
SAINT LOUIS, MO 63110

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720979883, enumerated as an "individual" on July 15, 2025.

The provider is located at BARNES-JEWISH HOSPITAL 4590 NASH WAY ST. LOUIS, MO 63110 and the phone number is (872) 229-7799.

Pathology with taxonomy code 207ZP0102X and a focus in Anatomic Pathology & Clinical Pathology.