MR. JOHN THOMAS HUMMER PHD.
NPI 1598869778
Psychologist - Clinical in Kingsport, TN

NPI Status: Active since September 11, 2006

Contact Information

1570 WAVERLY ROAD
KINGSPORT, TN
ZIP 37664
Phone: (423) 224-1300
Fax: (423) 224-1375

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  • Individual
  • Male
  • Psychologist
  • Clinical

About JOHN HUMMER

This page provides the complete NPI Profile along with additional information for John Hummer, a provider established in Kingsport, Tennessee with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1598869778 assigned on September 2006. The practitioner's primary taxonomy code is 103TC0700X with license number 3296 (TN). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1598869778
Provider Name
MR. JOHN THOMAS HUMMER PHD.
Gender
Male
Entity Type
Individual
Location Address
1570 WAVERLY ROAD KINGSPORT, TN 37664
Location Phone
(423) 224-1300
Location Fax
(423) 224-1375
Mailing Address
1167 SPRATLIN PARK DRIVE GRAY, TN 37615
Mailing Phone
(423) 467-3600
Mailing Fax
(423) 224-1375
Is Sole Proprietor?
No
Enumeration Date
09-11-2006
Last Update Date
02-01-2022
Code Navigator

A clinical psychologist like John Hummer assesses, diagnoses, and treats mental, emotional, and behavioral disorders. Clinical psychologists help people deal with problems ranging from short-term personal issues to severe, chronic conditions. Clinical psychologists interview patients, give diagnostic tests, provide psychotherapy and design behavior modification programs to help patients.

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

Psychologist Clinical

Taxonomy Code
103TC0700X
Type
Behavioral Health & Social Service Providers
License No.
3296
License State
TN
Taxonomy Description
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

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)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

PY0005168 (FL)

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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 1598869778, 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 82. The final step is to find the difference between that total and the next multiple of ten (90 - 82 = 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
5
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 9 → 18 → 9 8 → 16 → 7 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 1 + 6 + 6 + 1 + 8 + 7 + 1 + 4 + 24 = 82

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

The next multiple of ten after 82 is 90. The difference is the calculated check digit.

90 - 82 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1598869778.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Case Manager/Care Coordinator
1570 WAVERLY ROAD
KINGSPORT, TN 37664

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598869778, enumerated as an "individual" on September 11, 2006.

The provider is located at 1570 WAVERLY ROAD KINGSPORT, TN 37664 and the phone number is (423) 224-1300.

Psychologist with taxonomy code 103TC0700X and a focus in Clinical.