KARSYN HANNAHOE MS
NPI 1376471789
Genetic Counselor, MS in Greenwood, SC

NPI Status: Active since May 13, 2026

Contact Information

106 GREGOR MENDEL CIR
GREENWOOD, SC
ZIP 29646
Phone: (864) 941-8100
Fax: (864) 941-8114

Get Directions Write a Review

  • Individual
  • Female
  • Genetic Counselor, MS

About KARSYN HANNAHOE

This page provides the complete NPI Profile along with additional information for Karsyn Hannahoe, a provider established in Greenwood, South Carolina with a medical specialization in Genetic Counselor, Ms. The healthcare provider is registered in the NPI registry with number 1376471789 assigned on May 2026. The practitioner's primary taxonomy code is 170300000X. The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1376471789
Provider Name
KARSYN HANNAHOE MS
Gender
Female
Entity Type
Individual
Location Address
106 GREGOR MENDEL CIR GREENWOOD, SC 29646
Location Phone
(864) 941-8100
Location Fax
(864) 941-8114
Mailing Address
106 GREGOR MENDEL CIR GREENWOOD, SC 29646
Mailing Phone
(864) 941-8100
Mailing Fax
(864) 941-8114
Is Sole Proprietor?
No
Enumeration Date
05-13-2026
Last Update Date
05-13-2026
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

Genetic Counselor, MS

Taxonomy Code
170300000X
Type
Other Service Providers
Taxonomy Description
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.

Reviews for KARSYN HANNAHOE MS

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 1376471789, 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
7
Doubled → 14 → 1 + 4
Pos 4
6
Unchanged
Pos 5
4
Doubled → 8
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
7
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 7 → 14 → 5 4 → 8 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 4 + 6 + 8 + 7 + 2 + 7 + 1 + 6 + 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 1376471789.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Medical Genetics (Clinical Genetics (M.D.))
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Medical Genetics (Clinical Genetics (M.D.))
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Physician Assistant
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Genetic Counselor, MS
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Medical Genetics (Clinical Genetics (M.D.))
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Clinical Medical Laboratory
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Genetic Counselor, MS
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Genetic Counselor, MS
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Genetic Counselor, MS
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646
Physician Assistant
106 GREGOR MENDEL CIR
GREENWOOD, SC 29646

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1376471789, enumerated as an "individual" on May 13, 2026.

The provider is located at 106 GREGOR MENDEL CIR GREENWOOD, SC 29646 and the phone number is (864) 941-8100.

Genetic Counselor, MS with taxonomy code 170300000X.