Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

SAJANA HANSANI DISSANAYAKE MA
NPI 1104468958
Student in an Organized Health Care Education/Training Program in Alcoa, TN

Active since October 14, 2019
255 E WATT ST, ALCOA, TN 37701(865) 273-1616(865) 273-1645 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 14, 2026, Mar 11, 2025, Oct 14, 2019 (3 updates tracked since 2019).

  • Individual
  • Female
  • Student in an Organized Health Care Educ...

About SAJANA DISSANAYAKE

This page provides the complete NPI Profile along with additional information for Sajana Dissanayake, a primary care provider established in Alcoa, Tennessee with a medical specialization in Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1104468958 assigned on October 2019. The practitioner's primary taxonomy code is 390200000X. The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1104468958
Provider Name
SAJANA HANSANI DISSANAYAKE MA
Gender
Female
Entity Type
Individual
Location Address
255 E WATT ST ALCOA, TN 37701
Location Phone
(865) 273-1616
Location Fax
(865) 273-1645
Mailing Address
1923 SULPHUR SPRINGS RD MORRISTOWN, TN 37813
Mailing Phone
(423) 317-9344
Mailing Fax
(423) 714-2355
Is Sole Proprietor?
No
Enumeration Date
10-14-2019
Last Update Date
07-14-2026
Code Navigator

A primary care provider (PCP) like Sajana Dissanayake sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Secondary Locations

  • 6216 Lonas Dr
    Knoxville, TN 37909
    (865) 951-1029

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

Student in an Organized Health Care Education/Training Program

Taxonomy Code
390200000X
Type
Student, Health Care
Taxonomy Description
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

 

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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 1104468958, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 8 + 6 + 1 + 6 + 9 + 1 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1104468958.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Marriage & Family Therapist
255 E WATT ST
ALCOA, TN 37701
Registered Nurse (Psychiatric/Mental Health)
255 E WATT ST
ALCOA, TN 37701
Registered Nurse (Psychiatric/Mental Health)
255 E WATT ST
ALCOA, TN 37701
Social Worker
255 E WATT ST
ALCOA, TN 37701
Social Worker
255 E WATT ST
ALCOA, TN 37701
Student in an Organized Health Care Education/Training Program
255 E WATT ST
ALCOA, TN 37701
Counselor (Mental Health)
255 E WATT ST
ALCOA, TN 37701
Case Manager/Care Coordinator
255 E WATT ST
ALCOA, TN 37701
Registered Nurse (Psychiatric/Mental Health)
255 E WATT ST
ALCOA, TN 37701
Internal Medicine
255 E WATT ST
ALCOA, TN 37701
Social Worker
255 E WATT ST
ALCOA, TN 37701
Psychologist (Clinical)
255 E WATT ST
ALCOA, TN 37701
Social Worker (Clinical)
255 E WATT ST
ALCOA, TN 37701
Nurse's Aide
255 E WATT ST
ALCOA, TN 37701
Registered Nurse
255 E WATT ST
ALCOA, TN 37701
Nurse's Aide
255 E WATT ST
ALCOA, TN 37701
Licensed Practical Nurse
255 E WATT ST
ALCOA, TN 37701
Licensed Practical Nurse
255 E WATT ST
ALCOA, TN 37701
Registered Nurse
255 E WATT ST
ALCOA, TN 37701
Registered Nurse
255 E WATT ST
ALCOA, TN 37701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104468958, enumerated as an "individual" on October 14, 2019.

The provider is located at 255 E WATT ST ALCOA, TN 37701 and the phone number is (865) 273-1616.

Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.