CHESAPEAKE TOXICOLOGY RESOURCES, LLC
NPI 1992160436
Clinical Medical Laboratory in Frederick, MD

NPI Status: Active since December 29, 2015

Contact Information

8415 PROGRESS DR UNIT V
FREDERICK, MD
ZIP 21701
Phone: (240) 397-7060

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  • Organization
  • Clinical Medical Laboratory
  • CLIA Number: 21D2105193
  • CLIA Cert. Type: Independent
  • CLIA Exp. Date: 04-14-2028

About CHESAPEAKE TOXICOLOGY RESOURCES, LLC

This page provides the complete NPI Profile along with additional information for Chesapeake Toxicology Resources, Llc, a provider established in Frederick, Maryland operating as a Clinical Medical Laboratory. The healthcare provider is registered in the NPI registry with number 1992160436 assigned on December 2015. The practitioner's primary taxonomy code is 291U00000X with license number 2102105193 (MD). The provider is registered as an organization and their NPI record was last updated March 2026. The authorized official of this NPI record is Justin Holler (Managing Partner)

NPI
1992160436
Provider Name
CHESAPEAKE TOXICOLOGY RESOURCES, LLC
Entity Type
Organization
Location Address
8415 PROGRESS DR UNIT V FREDERICK, MD 21701
Location Phone
(240) 397-7060
Mailing Address
8415 PROGRESS DR UNIT V FREDERICK, MD 21701
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-29-2015
Last Update Date
03-11-2026
Code Navigator

Establishments like Chesapeake Toxicology Resources, Llc are healthcare facilities that may perform a wide range of laboratory procedures, assisted by doctors and medical technologists. Laboratories can be categorized according to their function as common diagnostic labs or specialty labs that conduct specialized or confirmatory tests. Different clinical laboratories could specialize in clinical chemistry, clinical microbiology, hematology, serology, clinical microscopy, cytopathology, molecular biology, or public health. Please inquire directly with this provider to confirm their test menu.

Clinical labs in the U.S. that perform human testing are regulated by the Centers for Medicare & Medicaid Services (CMS) through the Clinical Laboratory Improvement Amendments (CLIA) program. The purpose of the CLIA program is to guarantee the quality of laboratory testing. This provider has a CLIA number assigned, and undergoes regular inspections to ensure compliance and quality.

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

Clinical Medical Laboratory

Taxonomy Code
291U00000X
Type
Laboratories
License No.
2102105193
License State
MD
Taxonomy Description
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.

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

JUSTIN HOLLER

Authorized Official Title
MANAGING PARTNER
Authorized Official Phone
(240) 397-7058

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms

A definitive drug test is a detailed examination that can identify specific drugs in your system, even closely related ones. Techniques like GC/MS and LC/MS are used for high precision. This helps ensure accurate results for your safety and health.

This service was performed 36 times for 21 patients

Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms

A definitive drug test is a detailed analysis used to identify specific drugs in your system. It uses advanced techniques, such as gc/ms and lc/ms, to detect and distinguish between different drugs, even those with similar structures.

This service was performed 181 times for 40 patients

Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms

A definitive drug test identifies specific drugs in your system. Advanced methods like GC/MS (Gas Chromatography/Mass Spectrometry) and LC/MS (Liquid Chromatography/Mass Spectrometry) are used. These can distinguish between similar drugs, providing precise results.

This service was performed 417 times for 190 patients

Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within

This is a test to detect the COVID-19 virus. It uses a technique that amplifies the virus's genetic material (DNA or RNA) for detection. High throughput technologies are used for rapid and large-scale testing. The procedure is completed within a set time frame.

This service was performed 133 times for 95 patients

Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r

This is a test for COVID-19. It uses high-tech methods to find the virus's genetic material in your body. The amplified probe technique helps detect the virus even in small amounts. This is crucial for early detection and effective treatment.

This service was performed 133 times for 95 patients

Specimen collection for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), any specimen source

Specimen collection for SARS-CoV-2, the virus causing COVID-19, involves taking a sample from the nose or throat using a swab. This sample is then analyzed in a lab to detect the presence of the virus. It's a crucial step in diagnosing COVID-19.

This service was performed 89 times for 76 patients

Testing for presence of drug, by chemistry analyzers

Chemistry analyzers are used to detect the presence of drugs in your system. This test involves taking a small sample of your blood or urine. The sample is then analyzed for specific substances. The results help in understanding your health condition better.

This service was performed 431 times for 185 patients

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
21D2105193
Facility Type
Independent
Certificate Effective Date
April 15, 2026
Certificate Expiration Date
April 14, 2028
Laboratory Director
BARRY S. LEVINE
Certificate Type
Certificate of Compliance
Certificate Type Description
This CLIA certificate is issued to Chesapeake Toxicology Resources, Llc after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.

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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 1992160436, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
9
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
2
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
3
Doubled → 6
Check
6
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 1 → 2 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 2 + 6 + 0 + 4 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1992160436.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992160436, enumerated as an "organization" on December 29, 2015.

The provider is located at 8415 PROGRESS DR UNIT V FREDERICK, MD 21701 and the phone number is (240) 397-7060.

Clinical Medical Laboratory with taxonomy code 291U00000X.