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WALNUT CREEK ENDOSCOPY CENTER LLC
NPI 1851568067
Clinic/Center - Ambulatory Surgical in Walnut Creek, CA

Active since May 15, 2008CLIA 05D1094052 · Waiver
365 LENNON LN STE 100, WALNUT CREEK, CA 94598(650) 331-4662(866) 408-1090 Get Directions Write a Review

NPPES record last updated: May 16, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Walnut Creek Endoscopy Center Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WALNUT CREEK ENDOSCOPY CENTER LLC (NPI 1851568067) is a healthcare organization registered as an ambulatory surgical in Walnut Creek, California and active in the NPI registry since May 2008. The organization holds a CLIA Waiver certificate valid through January 7, 2027 and lists Samuel N Marcus, Co-founder, as its authorized official.

NPPES Registry Identity

NPI1851568067
Entity TypeOrganization
Primary Taxonomy261QA1903X
Legal Business NameWALNUT CREEK ENDOSCOPY CENTER LLC
Location Address365 LENNON LN STE 100Walnut Creek, CA 94598-5911
Mailing Address730 Distel DrLos Altos, CA 94022-1521 · (650) 331-4650
Phone(650) 331-4662
Fax(866) 408-1090
Organization SubpartNo
Authorized OfficialSamuel N MarcusCo-founder · (650) 331-4650
Enumeration DateMay 15, 2008
Last NPPES UpdateMay 16, 2008
✔ NPI 1851568067 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Ambulatory SurgicalAmbulatory Health Care Facilities
Taxonomy Code261QA1903X
365 LENNON LN STE 100, Walnut Creek, CA 94598
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CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D1094052

Walnut Creek Endoscopy Center, LLC · Walnut Creek, CA
Active · expires Jan 7, 2027
CLIA Number05D1094052
Laboratory TypeAmbulatory Surgery Center
Certificate Effective DateJanuary 8, 2025
Certificate Expiration DateJanuary 7, 2027
Laboratory DirectorSubhendu F. Narayan MD
Laboratory Phone(916) 215-7832
Laboratory LocationWalnut Creek Endoscopy Center, LLC365 Lennon Ln Ste 100, Walnut Creek, CA 94598
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Biopsy of large bowel using a flexible endoscope 45380
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.
479 services476 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
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.
395 services385 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
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.
243 services242 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
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.
86 services86 patients
Microscopic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43252
This procedure involves using a thin, flexible instrument called an endoscope to examine the esophagus, stomach, and upper small bowel. The endoscope has a light and camera, allowing a detailed view of these areas to help diagnose various conditions.
52 services51 patients
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121
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.
42 services42 patients

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Walnut Creek Endoscopy Center LLC's NPI number?

The NPI number for Walnut Creek Endoscopy Center LLC is 1851568067. It was assigned to this organization in the NPPES registry on May 15, 2008.

Where is Walnut Creek Endoscopy Center LLC located?

Walnut Creek Endoscopy Center LLC is located at 365 Lennon Ln Ste 100, Walnut Creek, CA 94598. The listed phone number is (650) 331-4662.

What is Walnut Creek Endoscopy Center LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.

Does Walnut Creek Endoscopy Center LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D1094052) is associated with this NPI, valid through January 7, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Walnut Creek Endoscopy Center LLC was last updated on May 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.