KATHERINE LINN LCSW
NPI 1659850477
Social Worker - Clinical in Durham, NC

NPI Status: Active since August 13, 2018

Contact Information

1121 W CHAPEL HILL ST STE 100
DURHAM, NC
ZIP 27701
Phone: (919) 385-0703

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  • Individual
  • Female
  • Social Worker
  • Clinical
  • Opted-Out Medicare

About KATHERINE LINN

This page provides the complete NPI Profile along with additional information for Katherine Linn, a provider established in Durham, North Carolina with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1659850477 assigned on August 2018. The practitioner's primary taxonomy code is 1041C0700X with license number C010799 (NC). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1659850477
Provider Name
KATHERINE LINN LCSW
Gender
Female
Entity Type
Individual
Location Address
1121 W CHAPEL HILL ST STE 100 DURHAM, NC 27701
Location Phone
(919) 385-0703
Mailing Address
4400 TALCOTT DR DURHAM, NC 27705
Mailing Phone
(917) 750-9073
Is Sole Proprietor?
No
Enumeration Date
08-13-2018
Last Update Date
01-26-2021
Code Navigator

A clinical social worker like Katherine Linn is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Katherine Linn opted out of Medicare effective on 09-03-2024 until 09-03-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

Location Map

Secondary Locations

  • 817 Broad St
    Durham, NC 27705
    (917) 750-9073
  • 4400 Talcott Dr
    Durham, NC 27705
    (917) 750-9073

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

Social Worker Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
C010799
License State
NC
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Medicare Participation & PECOS Enrollment Status

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 09-03-2024

  • Opt-Out End Date: 09-03-2026

  • Eligible to Order and Refer? No

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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 1659850477, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
7
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 5 → 10 → 1 8 → 16 → 7 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 1 + 6 + 5 + 0 + 4 + 1 + 4 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1659850477.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Counselor (Professional)
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Psychologist
1121 W CHAPEL HILL ST STE 100, #908
DURHAM, NC 27701
Social Worker (Clinical)
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Counselor (Mental Health)
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Counselor (Professional)
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Counselor (Professional)
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Psychologist
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Counselor (Mental Health)
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701
Psychologist
1121 W CHAPEL HILL ST STE 100
DURHAM, NC 27701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659850477, enumerated as an "individual" on August 13, 2018.

The provider is located at 1121 W CHAPEL HILL ST STE 100 DURHAM, NC 27701 and the phone number is (919) 385-0703.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.