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Case FileDOT 1521871
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Carrier Profile · DOT 1521871

Johnner Tree Diagnostics

Private Carrier · Not For HireWinthrop, NY 13697
Updated 2026-05-30T03:02:54.893Z·By Sarah Chen, Lead Safety Analyst·Reviewed by James Rodriguez·Methodology v2.1

Johnner Tree Diagnostics has a fleet of 1 power units and 1 drivers. It does not hold for-hire operating authority and may operate as a private carrier. No roadside inspection history is on record.

Identity
Legal nameJohnner Tree Diagnostics
DBA
DOT #1521871
MC #
CityWinthrop
StateNew York
ZIP13697
Authority age19.9y
StatusActive (No Auth)
Common authorityNot authorized
Contract authorityNot authorized
Broker authorityNot authorized
OperationIntrastate
HazmatNot authorized
MCS-150 filed03/13/2026
Company officerKenneth D Johnner
FMCSA SAFER →FMCSA Safety Scores (SMS) →
Fleet size
1
Power units
Drivers
1
Total drivers
Inspections
0
On record
Crashes
0
On record
OOS Rate
No inspections on record

Source: FMCSA compliance records, Truck Graph analysis. View methodology

Location

419 COUNTY ROUTE 49, Winthrop, NY, 13697

419 COUNTY ROUTE 49, WINTHROP, NY, 13697Open in Maps →

Inspection history

0 total inspections. OOS rate: N/A%. Showing last 5.

No inspection records found.

Source: FMCSA inspection records. View methodology

Crash history

0 crashes on record. Showing last 3.

No crash records found.

Source: FMCSA crash records. View methodology

Insurance status

Current insurance filing on record with FMCSA.

No active insurance filing found. Verify directly with carrier.

Source: FMCSA insurance filings. View methodology

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Authority timeline

Key events in this carrier's operating authority history.

Authority Granted
Jun 2006
FMCSA issued operating authority
Active
Current
Authority currently active

Source: FMCSA authority records and revocation orders. View methodology

Research this company

Verify independently using official government and public sources.

FMCSA SAFER System
Official DOT safety record, authority status, inspections
Google Search
News, reviews, and web presence
New York Secretary of State
Business registration and corporate filings
Better Business Bureau
Complaints, ratings, and accreditation status
LinkedIn
Company employees, leadership, and network
PACER (Federal Courts)
Federal litigation, bankruptcy filings

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Johnner Tree Diagnostics is based in Winthrop, NY, which is part of the larger New York trucking market. Browse the full national carrier directory to compare across all 50 states.

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Frequently asked

Johnner Tree Diagnostics

Answers from verified compliance records.

Is Johnner Tree Diagnostics authorized to operate?

Johnner Tree Diagnostics's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Johnner Tree Diagnostics's safety record?

Johnner Tree Diagnostics does not have a substantial inspection history on record. This may indicate limited interstate operations.

How many trucks does Johnner Tree Diagnostics operate?

Johnner Tree Diagnostics operates 1 power units with approximately 1 drivers.

Is Johnner Tree Diagnostics insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Johnner Tree Diagnostics had any risk indicators?

No risk indicators have been detected for Johnner Tree Diagnostics as of the most recent data sync.

What is the DOT number for Johnner Tree Diagnostics?

Johnner Tree Diagnostics's DOT number is 1521871. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

Cite this page

For journalists and researchers

Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Johnner Tree Diagnostics Safety Record, DOT 1521871. Retrieved from https://truckgraph.com/carriers/1521871
MLA
"Johnner Tree Diagnostics Safety Record, DOT 1521871." Truck Graph, May 30, 2026, https://truckgraph.com/carriers/1521871
Chicago
"Johnner Tree Diagnostics Safety Record, DOT 1521871." Truck Graph. Last modified May 30, 2026. https://truckgraph.com/carriers/1521871
SC
Sarah Chen
Lead Safety Analyst · 12 years freight intelligence
JR
James Rodriguez
Risk Analysis Editor
Last editorial review
Methodology v2.1 →