GLENDORA CA ENDOSCOPY ASC LP
NPI 1821285073
Clinic/Center - Ambulatory Surgical in Glendora, CA

NPI Status: Active since October 02, 2007

Contact Information

1794 S BARRANCA AVE
GLENDORA, CA
ZIP 91740
Phone: (626) 858-4600
Fax: (626) 858-4601

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  • Organization
  • Clinic/Center
  • Ambulatory Surgical
  • CLIA Number: 05D1022612
  • CLIA Cert. Type: Ambulatory Surgery Center
  • CLIA Exp. Date: 02-19-2028

About GLENDORA CA ENDOSCOPY ASC LP

This page provides the complete NPI Profile along with additional information for Glendora Ca Endoscopy Asc Lp, a provider established in Glendora, California operating as a Clinic/center, focusing in ambulatory surgical . The healthcare provider is registered in the NPI registry with number 1821285073 assigned on October 2007. The practitioner's primary taxonomy code is 261QA1903X. The provider is registered as an organization and their NPI record was last updated one year ago. The provider's . The authorized official of this NPI record is Mr. Jeffrey Snodgrass (President)

NPI
1821285073
Provider Legal Name
GLENDORA CA ENDOSCOPY ASC LP
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
1794 S BARRANCA AVE GLENDORA, CA 91740
Location Phone
(626) 858-4600
Location Fax
(626) 858-4601
Mailing Address
1A BURTON HILLS BLVD STE 300 NASHVILLE, TN 37215
Mailing Phone
(615) 263-4011
Mailing Fax
(626) 858-4601
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
10-02-2007
Last Update Date
08-26-2025
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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

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

MR. JEFFREY SNODGRASS

Authorized Official Title
PRESIDENT
Authorized Official Phone
(615) 665-1283

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 21 times for 20 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 314 times for 311 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 206 times for 204 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 26 times for 26 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 40 times for 40 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 45 times for 45 patients

Dilation of stomach outlet using a flexible endoscope

This procedure involves expanding the opening of the stomach using a flexible tube with a light, called an endoscope. It helps improve food passage from the stomach to the small intestine. It's performed under sedation for patient comfort.

This service was performed 37 times for 37 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

This service was performed 25 times for 25 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 187 times for 186 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
05D1022612
Facility Type
Ambulatory Surgery Center
Certificate Effective Date
February 20, 2026
Certificate Expiration Date
February 19, 2028
Laboratory Director
SHAHNAWAZ S. JAFFER
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Glendora Ca Endoscopy Asc Lp 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 1821285073, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
8
Unchanged
Pos 3
2
Doubled → 4
Pos 4
1
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
0
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 2 → 4 2 → 4 5 → 10 → 1 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 4 + 8 + 1 + 0 + 0 + 1 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1821285073.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Clinic/Center (Ambulatory Surgical)
1794 S BARRANCA AVE
GLENDORA, CA 91740
Nurse Anesthetist, Certified Registered
1794 S BARRANCA AVE
GLENDORA, CA 91740

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821285073, enumerated as an "organization" on October 02, 2007.

The provider is located at 1794 S BARRANCA AVE GLENDORA, CA 91740 and the phone number is (626) 858-4600.

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