DR. D. E. HARMON EYE CLINIC, PLLC
NPI 1780511675
Eyewear Supplier in Morristown, TN

NPI Status: Active since May 06, 2026

Contact Information

PO BOX 1088
MORRISTOWN, TN
ZIP 37816
Phone: (423) 586-9601
Fax: (423) 586-9050

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  • Organization
  • Eyewear Supplier
  • CLIA Number: 44D2040702
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 05-07-2028

About DR. D. E. HARMON EYE CLINIC, PLLC

This page provides the complete NPI Profile along with additional information for Dr. D. E. Harmon Eye Clinic, Pllc, a provider established in Morristown, Tennessee operating as a Eyewear Supplier. The healthcare provider is registered in the NPI registry with number 1780511675 assigned on May 2026. The practitioner's primary taxonomy code is 332H00000X. The provider is registered as an organization and their NPI record was last updated May 2026. The authorized official of this NPI record is David E Harmon Do (Owner)

NPI
1780511675
Provider Name
DR. D. E. HARMON EYE CLINIC, PLLC
Entity Type
Organization
Location Address
PO BOX 1088 MORRISTOWN, TN 37816
Location Phone
(423) 586-9601
Location Fax
(423) 586-9050
Mailing Address
PO BOX 1088 MORRISTOWN, TN 37816
Mailing Phone
(423) 586-9601
Mailing Fax
(423) 586-9050
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-06-2026
Last Update Date
05-06-2026
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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

Eyewear Supplier

Taxonomy Code
332H00000X
Type
Suppliers
Taxonomy Description
An organization that provides spectacles, contact lenses, and other vision enhancement devices prescribed by an optometrist or ophthalmologist.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DAVID E HARMON DO

Authorized Official Title
OWNER
Authorized Official Phone
(423) 586-9601

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
44D2040702
Facility Type
Physician Office
Certificate Effective Date
May 08, 2026
Certificate Expiration Date
May 07, 2028
Laboratory Director
DAVID HARMON
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Dr. D. E. Harmon Eye Clinic, Pllc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1780511675, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
7
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
0
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
1
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 8 → 16 → 7 5 → 10 → 1 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 6 + 0 + 1 + 0 + 1 + 2 + 6 + 1 + 4 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1780511675.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1780511675, enumerated as an "organization" on May 06, 2026.

The provider is located at PO BOX 1088 MORRISTOWN, TN 37816 and the phone number is (423) 586-9601.

Eyewear Supplier with taxonomy code 332H00000X.