ORANGE COUNTY DIGESTIVE CENTER, INC
NPI 1114483492
Clinic/Center - Ambulatory Surgical in Irvine, CA

NPI Status: Active since February 12, 2019

Contact Information

1400 REYNOLDS AVE STE 125
IRVINE, CA
ZIP 92614
Phone: (657) 900-4536

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  • Organization
  • Clinic/Center
  • Ambulatory Surgical
  • CLIA Number: 05D2170968
  • CLIA Cert. Type: Ambulatory Surgery Center
  • CLIA Exp. Date: 08-21-2027

About ORANGE COUNTY DIGESTIVE CENTER, INC

This page provides the complete NPI Profile along with additional information for Orange County Digestive Center, Inc, a provider established in Irvine, California operating as a Clinic/center, focusing in ambulatory surgical . The healthcare provider is registered in the NPI registry with number 1114483492 assigned on February 2019. The practitioner's primary taxonomy code is 261QA1903X. The provider is registered as an organization and their NPI record was last updated 4 years ago. The authorized official of this NPI record is Essam R Quraishi Md (Owner/president)

NPI
1114483492
Provider Name
ORANGE COUNTY DIGESTIVE CENTER, INC
Entity Type
Organization
Location Address
1400 REYNOLDS AVE STE 125 IRVINE, CA 92614
Location Phone
(657) 900-4536
Mailing Address
1400 REYNOLDS AVE STE 125 IRVINE, CA 92614
Mailing Phone
(657) 900-4536
Mailing Fax
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-12-2019
Last Update Date
12-21-2021
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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

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

ESSAM R QURAISHI MD

Authorized Official Title
OWNER/PRESIDENT
Authorized Official Phone
(949) 771-9910

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.

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 105 times for 104 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 62 times for 62 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 36 times for 36 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 102 times for 100 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
05D2170968
Facility Type
Ambulatory Surgery Center
Certificate Effective Date
August 22, 2025
Certificate Expiration Date
August 21, 2027
Laboratory Director
ESSAM R. QURAISHI
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Orange County Digestive Center, Inc 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 1114483492, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 2 + 4 + 8 + 8 + 6 + 4 + 1 + 8 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1114483492.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114483492, enumerated as an "organization" on February 12, 2019.

The provider is located at 1400 REYNOLDS AVE STE 125 IRVINE, CA 92614 and the phone number is (657) 900-4536.

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