FREDERICK ENDOSCOPY CENTER LLC
NPI 1063519866
Clinic/Center - Endoscopy in Frederick, MD

NPI Status: Active since September 20, 2006

Contact Information

7115 GUILFORD DR
SUITE 201
FREDERICK, MD
ZIP 21704
Phone: (301) 682-6261
Fax: (301) 682-6253

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  • Organization
  • Clinic/Center
  • Endoscopy
  • CLIA Number: 21D0929759
  • CLIA Cert. Type: Ambulatory Surgery Center
  • CLIA Exp. Date: 05-13-2028

About FREDERICK ENDOSCOPY CENTER LLC

This page provides the complete NPI Profile along with additional information for Frederick Endoscopy Center Llc, a provider established in Frederick, Maryland operating as a Clinic/center, focusing in endoscopy . The healthcare provider is registered in the NPI registry with number 1063519866 assigned on September 2006. The practitioner's primary taxonomy code is 261QE0800X. The provider is registered as an organization and their NPI record was last updated January 2026. The authorized official of this NPI record is Dr. Dawei Yang Md (Medical Director)

NPI
1063519866
Provider Name
FREDERICK ENDOSCOPY CENTER LLC
Entity Type
Organization
Location Address
7115 GUILFORD DR SUITE 201 FREDERICK, MD 21704
Location Phone
(301) 682-6261
Location Fax
(301) 682-6253
Mailing Address
7115 GUILFORD DR STE 201 FREDERICK, MD 21704
Mailing Phone
(301) 682-6261
Mailing Fax
(301) 682-6253
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-20-2006
Last Update Date
01-21-2026
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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

Clinic/Center Endoscopy

Taxonomy Code
261QE0800X
Type
Ambulatory Health Care Facilities

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

DR. DAWEI YANG MD

Authorized Official Title
MEDICAL DIRECTOR
Authorized Official Phone
(301) 695-6800

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.

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

This service was performed 83 times for 76 patients

Banding of hemorrhoids using a flexible endoscope (sigmoidoscope)

Banding of hemorrhoids is a procedure where a doctor uses a flexible tube called a sigmoidoscope to view the lower part of your colon. The doctor then places tiny rubber bands around the hemorrhoids. This cuts off their blood supply, causing them to shrink and fall off.

This service was performed 12 times for 11 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

This service was performed 880 times for 800 patients

Biopsy of large bowel using a flexible endoscope

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

This service was performed 1,047 times for 1,037 patients

Biopsy of lower large bowel using a flexible endoscope

A biopsy of the lower large bowel involves using a flexible tube with a camera (endoscope) to examine this part of your digestive tract. Small tissue samples may be taken for further examination to detect any abnormalities.

This service was performed 42 times for 39 patients

Colorectal cancer screening; colonoscopy on individual at high risk

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

This service was performed 116 times for 116 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

This service was performed 49 times for 49 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

This service was performed 25 times for 24 patients

Diagnostic exam of large bowel using a flexible endoscope

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

This service was performed 60 times for 60 patients

Diagnostic exam of lower portion of large bowel using a flexible endoscope

This procedure, known as a sigmoidoscopy, involves using a flexible tube with a camera to examine the lower part of your large bowel. It helps in identifying issues like inflammation, ulcers, or abnormal growths. It's a safe, minimally invasive procedure.

This service was performed 14 times for 14 patients

Injection beneath lining of large bowel using a flexible endoscope

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

This service was performed 26 times for 26 patients

Removal of large bowel tissue using a flexible endoscope

This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.

This service was performed 26 times for 26 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

This service was performed 74 times for 73 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

This service was performed 1,089 times for 1,080 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth

This procedure involves a flexible tube with a camera and ultrasound device, inserted through the mouth to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like inflammation, tumors, or other abnormalities.

This service was performed 48 times for 47 patients

Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope

An ultrasound guided needle aspiration or biopsy of the esophagus involves using a flexible tube with a camera (endoscope) to view your esophagus. An ultrasound device on the endoscope helps to guide a needle to take a small tissue sample for testing. This is a safe, minimally invasive procedure.

This service was performed 27 times for 27 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
21D0929759
Facility Type
Ambulatory Surgery Center
Certificate Effective Date
May 14, 2026
Certificate Expiration Date
May 13, 2028
Laboratory Director
DAWEI YANG
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Frederick Endoscopy Center Llc 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 1063519866, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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
0
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 6 → 12 → 3 5 → 10 → 1 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 2 + 3 + 1 + 0 + 1 + 1 + 8 + 8 + 1 + 2 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1063519866.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Internal Medicine (Pulmonary Disease)
7115 GUILFORD DR, SUITE #202
FREDERICK, MD 21704
Dentist (General Practice)
7115 GUILFORD DR, STE 101
FREDERICK, MD 21704
Dentist
7115 GUILFORD DR, STE 101
FREDERICK, MD 21704
Internal Medicine (Pulmonary Disease)
7115 GUILFORD DR, SUITE #202
FREDERICK, MD 21704
Internal Medicine
7115 GUILFORD DR, STE 202
FREDERICK, MD 21704
Internal Medicine (Pulmonary Disease)
7115 GUILFORD DR, SUITE 202
FREDERICK, MD 21704
Internal Medicine (Pulmonary Disease)
7115 GUILFORD DR, SUITE #202
FREDERICK, MD 21704

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1063519866, enumerated as an "organization" on September 20, 2006.

The provider is located at 7115 GUILFORD DR SUITE 201 FREDERICK, MD 21704 and the phone number is (301) 682-6261.

Clinic/Center with taxonomy code 261QE0800X and a focus in Endoscopy.