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AMBULATORY SURGICAL CENTER, LLC
NPI 1891717823
Clinic/Center - Ambulatory Surgical in Oshkosh, WI

Active since July 25, 2006CLIA 52D0979867 · Waiver
2120 S WASHBURN ST, OSHKOSH, WI 54904(920) 236-3550(920) 238-3169 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 4, 2026, Jan 6, 2022 (2 updates tracked since 2022).

About Ambulatory Surgical Center, Llc NPPES

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

AMBULATORY SURGICAL CENTER, LLC (NPI 1891717823) is a healthcare organization registered as an ambulatory surgical in Oshkosh, Wisconsin and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through November 1, 2026 and lists Eric Larson, Medical Director, as its authorized official.

NPPES Registry Identity

NPI1891717823
Entity TypeOrganization
Primary Taxonomy261QA1903X
Legal Business NameAMBULATORY SURGICAL CENTER, LLC
Location Address2120 S WASHBURN STOshkosh, WI 54904
Mailing Address2120 S Washburn StOshkosh, WI 54904 · (920) 236-3550 · Fax (920) 238-3169
Phone(920) 236-3550
Fax(920) 238-3169
Organization SubpartNo
Authorized OfficialEric LarsonMedical Director · (920) 236-3550
Enumeration DateJuly 25, 2006
Last NPPES UpdateFebruary 9, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 9, 2026
✔ NPI 1891717823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Ambulatory SurgicalAmbulatory Health Care Facilities
Taxonomy Code261QA1903X
2120 S WASHBURN ST, Oshkosh, WI 54904
Open in Google Maps ↗

Other Identifiers 4

OtherNPI 1619957230Stephen J Merfeld
Medicaid41911700WI
OtherNPI 1437244621Bradley N Lemke
OtherNPI 1275513467Eric M Larson

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Network Health.Insurance ›

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 52D0979867

Ambulatory Surgical Center, LLC · Oshkosh, WI
Active · expires Nov 1, 2026
CLIA Number52D0979867
Laboratory TypeAmbulatory Surgery Center
Certificate Effective DateNovember 2, 2024
Certificate Expiration DateNovember 1, 2026
Laboratory DirectorDr. Eric Larson
Laboratory Phone(920) 236-3550
Laboratory LocationAmbulatory Surgical Center, LLC2120 S Washburn St, Oshkosh, WI 54904
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 2

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.

Removal of cataract with insertion of prosthetic lens 66984
This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.
359 services213 patients
Laser repair to improve eye fluid flow 65855
Laser repair to improve eye fluid flow is a procedure aimed at treating glaucoma. A laser is used to create a small hole in the eye's drainage system, allowing fluid to flow out more easily. This helps to lower the pressure inside the eye, reducing the risk of vision loss.
15 services12 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 Ambulatory Surgical Center, LLC's NPI number?

The NPI number for Ambulatory Surgical Center, LLC is 1891717823. It was assigned to this organization in the NPPES registry on July 25, 2006.

Where is Ambulatory Surgical Center, LLC located?

Ambulatory Surgical Center, LLC is located at 2120 S Washburn St, Oshkosh, WI 54904. The listed phone number is (920) 236-3550.

What is Ambulatory Surgical Center, LLC's specialty?

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

Does Ambulatory Surgical Center, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 52D0979867) is associated with this NPI, valid through November 1, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Ambulatory Surgical Center, LLC accept?

Health plans from Anthem Blue Cross and Blue Shield and Network Health list Ambulatory Surgical Center, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ambulatory Surgical Center, LLC was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.