SIERRA ENDOSCOPY CENTER, LLC
NPI 1760440515
Clinic/Center - Ambulatory Surgical in Grass Valley, CA

NPI Status: Active since May 02, 2006

Contact Information

300 SIERRA COLLEGE DR
STE.105
GRASS VALLEY, CA
ZIP 95945
Phone: (530) 273-0527

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  • Organization
  • Clinic/Center
  • Ambulatory Surgical
  • CLIA Number: 05D0994419
  • CLIA Cert. Type: Other
  • CLIA Exp. Date: 12-12-2027

About SIERRA ENDOSCOPY CENTER, LLC

This page provides the complete NPI Profile along with additional information for Sierra Endoscopy Center, Llc, a provider established in Grass Valley, California operating as a Clinic/center, focusing in ambulatory surgical . The healthcare provider is registered in the NPI registry with number 1760440515 assigned on May 2006. The practitioner's primary taxonomy code is 261QA1903X with license number 230000350 (CA). The provider is registered as an organization and their NPI record was last updated February 2026. The authorized official of this NPI record is Eric Boon (Officer/authorized Official)

NPI
1760440515
Provider Name
SIERRA ENDOSCOPY CENTER, LLC
Entity Type
Organization
Location Address
300 SIERRA COLLEGE DR STE.105 GRASS VALLEY, CA 95945
Location Phone
(530) 273-0527
Mailing Address
300 SIERRA COLLEGE DR STE 105 GRASS VALLEY, CA 95945
Mailing Phone
(530) 273-0527
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-02-2006
Last Update Date
02-20-2026
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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 Ambulatory Surgical

Taxonomy Code
261QA1903X
Type
Ambulatory Health Care Facilities
License No.
230000350
License State
CA

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

ERIC BOON

Authorized Official Title
OFFICER/AUTHORIZED OFFICIAL
Authorized Official Phone
(480) 567-0269

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 127 times for 113 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 765 times for 746 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 277 times for 276 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 12 times for 11 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 214 times for 214 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 185 times for 185 patients

Destruction of polyp or growth of large bowel using a flexible endoscope

This procedure involves the removal of a polyp or growth in the large bowel. A flexible endoscope, a thin tube with a camera, is inserted through the rectum to visualize and remove the growth. This helps maintain bowel health and prevent complications.

This service was performed 19 times for 19 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 13 times for 13 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 209 times for 207 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 11 times for 11 patients

Dilation of esophagus

Dilation of the esophagus is a procedure aimed to stretch or open up your esophagus (the tube connecting your mouth to your stomach) when it's narrow. It helps to improve swallowing and alleviate discomfort. It's typically performed using a flexible tube or balloon, under sedation.

This service was performed 11 times for 11 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 20 times for 20 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 750 times for 744 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
05D0994419
Facility Type
Other
Certificate Effective Date
December 13, 2025
Certificate Expiration Date
December 12, 2027
Laboratory Director
ASLAM C. GODIL
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Sierra 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 1760440515, 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
6
Doubled → 12 → 1 + 2
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
1
Doubled → 2
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 6 → 12 → 3 4 → 8 0 → 0 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 2 + 0 + 8 + 4 + 0 + 5 + 2 + 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 1760440515.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Internal Medicine (Gastroenterology)
300 SIERRA COLLEGE DR, STE105
GRASS VALLEY, CA 95945
Allergy & Immunology
300 SIERRA COLLEGE DR, STE 235
GRASS VALLEY, CA 95945
Dentist (Oral and Maxillofacial Surgery)
300 SIERRA COLLEGE DR, #120
GRASS VALLEY, CA 95945
Specialist
300 SIERRA COLLEGE DR, STE.105
GRASS VALLEY, CA 95945
Dentist
300 SIERRA COLLEGE DR, #110
GRASS VALLEY, CA 95945
Family Medicine
300 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Physician Assistant (Medical)
300 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Physical Therapist
300 SIERRA COLLEGE DR, 165
GRASS VALLEY, CA 95945
Physical Therapist
300 SIERRA COLLEGE DR, SUITE 165
GRASS VALLEY, CA 95945
Family Medicine
300 SIERRA COLLEGE DR, STE 170
GRASS VALLEY, CA 95945
Physical Therapist
300 SIERRA COLLEGE DR, SUITE 165
GRASS VALLEY, CA 95945
Physical Therapist
300 SIERRA COLLEGE DR, STE. 165
GRASS VALLEY, CA 95945
Allergy & Immunology (Allergy)
300 SIERRA COLLEGE DR, SUITE 235
GRASS VALLEY, CA 95945
Physical Therapist
300 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Surgery (Vascular Surgery)
300 SIERRA COLLEGE DR, SUITE # 240
GRASS VALLEY, CA 95945
Internal Medicine (Gastroenterology)
300 SIERRA COLLEGE DR, STE.105
GRASS VALLEY, CA 95945
Internal Medicine
300 SIERRA COLLEGE DR, STE.105
GRASS VALLEY, CA 95945
Physical Therapy Assistant
300 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Ophthalmology
300 SIERRA COLLEGE DR, SUITE 265
GRASS VALLEY, CA 95945

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760440515, enumerated as an "organization" on May 02, 2006.

The provider is located at 300 SIERRA COLLEGE DR STE.105 GRASS VALLEY, CA 95945 and the phone number is (530) 273-0527.

Clinic/Center with taxonomy code 261QA1903X and a focus in Ambulatory Surgical.