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GENERAL SURGERY ASSOCIATES, LLC
NPI 1346327806
Surgery in Lincoln, NE

Active since November 01, 2006
1101 S 70TH ST, SUITE 100, LINCOLN, NE 68510(402) 483-4292(402) 483-4735 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About General Surgery Associates, Llc NPPES

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

GENERAL SURGERY ASSOCIATES, LLC (NPI 1346327806) is a healthcare organization registered as a surgery in Lincoln, Nebraska and active in the NPI registry since November 2006. The organization lists Stephen M Nagengast, Owner, as its authorized official.

NPPES Registry Identity

NPI1346327806
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameGENERAL SURGERY ASSOCIATES, LLC
Location Address1101 S 70TH ST, SUITE 100Lincoln, NE 68510-4278
Mailing Address1101 S 70th St, Suite 100Lincoln, NE 68510-4278 · (402) 483-4292 · Fax (402) 483-4735
Phone(402) 483-4292
Fax(402) 483-4735
Organization SubpartNo
Authorized OfficialStephen M NagengastOwner · (402) 483-4292
Enumeration DateNovember 1, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1346327806 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
1101 S 70TH ST, Lincoln, NE 68510
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Sunflower Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

General Surgery Associates, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to General Surgery Associates, LLC, which bills Medicare for the services they deliver. Of these, 5 practice at this address. They are listed nearest first.

Clinicians, nearest first (7)

Jackalyn Fink, APRN
Nurse Practitioner
NPI 1821962622
1101 S 70TH ST STE 100
Lincoln, NE 68510
(402) 483-4292
✔ PECOS✔ Accepts MedicareSame address
Jena Haverkamp, APRN, FNP-C
Nurse Practitioner
NPI 1255205068
1101 S 70TH ST STE 100
Lincoln, NE 68510
(402) 483-4292
✔ PECOS✔ Accepts MedicareSame address
Clinton Rathje, DO
General Surgery
NPI 1699039826
1101 S 70TH ST STE 100
Lincoln, NE 68510
(402) 483-4292
✔ PECOS✔ Accepts MedicareSame address
John Fallick, MD
General Surgery
NPI 1083791560
1101 S 70TH ST SUITE 100
Lincoln, NE 68510
(402) 483-4292
✔ PECOS✔ Accepts MedicareSame address
Stephen Nagengast, MD
General Surgery
NPI 1649357104
1101 S 70TH ST SUITE 100
Lincoln, NE 68510
(402) 483-4292
✔ PECOS✔ Accepts MedicareSame address
Weston Keller, M.D.
General Surgery
NPI 1932558087
905 VERDAE BLVD STE 202
Greenville, SC 29607
(864) 522-2100
✔ PECOS✔ Accepts Medicare883 mi
Brad Olberding, MD
General Surgery
NPI 1437386109
925 E MCDOWELL RD 2ND FLOOR
Phoenix, AZ 85006
(602) 239-2282
✔ PECOS✔ Accepts Medicare989 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 General Surgery Associates, LLC's NPI number?

The NPI number for General Surgery Associates, LLC is 1346327806. It was assigned to this organization in the NPPES registry on November 1, 2006.

Where is General Surgery Associates, LLC located?

General Surgery Associates, LLC is located at 1101 S 70th St Suite 100, Lincoln, NE 68510. The listed phone number is (402) 483-4292.

What is General Surgery Associates, LLC's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is General Surgery Associates, LLC enrolled in Medicare?

Yes. General Surgery Associates, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through General Surgery Associates, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to General Surgery Associates, LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are General Surgery (5) and Nurse Practitioner (2). Of these, 5 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does General Surgery Associates, LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan and Blue Cross and Blue Shield of Nebraska list General Surgery Associates, 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 General Surgery Associates, LLC was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.