MARK CHO APRN
NPI 1205700689
Nurse Practitioner - Family in Terryville, CT

NPI Status: Active since September 30, 2025

Contact Information

27 MAIN ST
TERRYVILLE, CT
ZIP 06786
Phone: (860) 314-6818

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  • Individual
  • Male
  • Nurse Practitioner
  • Family

About MARK CHO

This page provides the complete NPI Profile along with additional information for Mark Cho, a provider established in Terryville, Connecticut with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1205700689 assigned on September 2025. The practitioner's primary taxonomy code is 363LF0000X with license number 15439 (CT). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1205700689
Provider Name
MARK CHO APRN
Gender
Male
Entity Type
Individual
Location Address
27 MAIN ST TERRYVILLE, CT 06786
Location Phone
(860) 314-6818
Mailing Address
27 MAIN ST TERRYVILLE, CT 06786
Is Sole Proprietor?
No
Enumeration Date
09-30-2025
Last Update Date
10-03-2025
Code Navigator

A nurse practitioner (NP) like Mark Cho is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
15439
License State
CT

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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 1205700689, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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
2
Unchanged
Pos 3
0
Doubled → 0
Pos 4
5
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 0 → 0 7 → 14 → 5 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 0 + 5 + 1 + 4 + 0 + 0 + 6 + 1 + 6 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1205700689.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Internal Medicine
27 MAIN ST
TERRYVILLE, CT 06786
Nurse Practitioner (Family)
27 MAIN ST, BRISTOL HOSPITAL MULTI SPECIALTY GROUP, INC
TERRYVILLE, CT 06786
Nurse Practitioner (Primary Care)
27 MAIN ST
TERRYVILLE, CT 06786

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205700689, enumerated as an "individual" on September 30, 2025.

The provider is located at 27 MAIN ST TERRYVILLE, CT 06786 and the phone number is (860) 314-6818.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.