JENNIFER TSAI
NPI 1942167879
Nurse Anesthetist, Certified Registered in Rockford, IL

NPI Status: Active since January 05, 2026

Contact Information

1401 E STATE ST
ROCKFORD, IL
ZIP 61104
Phone: (779) 696-4400

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

Individual
Female
Nurse Anesthetist, Certified Registered

About JENNIFER TSAI

This page provides the complete NPI Profile along with additional information for Jennifer Tsai, a provider established in Rockford, Illinois with a medical specialization in Nurse Anesthetist, Certified Registered. The healthcare provider is registered in the NPI registry with number 1942167879 assigned on January 2026. The practitioner's primary taxonomy code is 367500000X with license number 156972 (IL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1942167879
Provider Name: JENNIFER TSAI
Gender: Female
Entity Type: Individual
Location Address: 1401 E STATE ST ROCKFORD, IL 61104
Location Phone: (779) 696-4400
Mailing Address: 3163 MCDONALD ST MIAMI, FL 33133
Mailing Phone: (610) 529-1334
Is Sole Proprietor?: Yes
Enumeration Date: 01-05-2026
Last Update Date: 01-10-2026
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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: Nurse Anesthetist, Certified Registered
Taxonomy Code: 367500000X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 156972
License State: IL
Taxonomy Description: (1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.

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 1942167879, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 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 4 → 8 1 → 2 7 → 14 → 5 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 8 + 2 + 2 + 6 + 1 + 4 + 8 + 1 + 4 + 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 1942167879.