DR. JOHN A AUCAR M.D.
NPI 1033141965
Surgery - Trauma Surgery in Omaha, NE

Active since July 07, 2006PECOS EnrolledAccepts Medicare Assignment
7710 MERCY RD STE 2000, OMAHA, NE 68124(402) 717-4909(402) 717-6068 Get Directions Write a Review

NPPES record last updated: June 10, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 10, 2019, Jun 8, 2017 (2 updates tracked since 2017).

About Dr. John A Aucar M.d. NPPES

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

DR. JOHN A AUCAR M.D. (NPI 1033141965) is an individual trauma surgery provider in Omaha, Nebraska, licensed in Nebraska (31524) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Chi Health Mercy Council Bluffs, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1986).

NPPES Registry Identity

NPI1033141965
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameDR. JOHN A AUCARCredential: M.D.
Location Address7710 MERCY RD STE 2000Omaha, NE 68124-2323
Mailing Address7261 Mercy RdOmaha, NE 68124-2311 · (402) 398-6248 · Fax (402) 829-8513
Fax(402) 717-6068
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1986
Enumeration DateJuly 7, 2006
Last NPPES UpdateJune 10, 20192 updates tracked since enumeration
✔ NPI 1033141965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License✔ Licensed in NE · 31524
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
Also ListedSurgeryTaxonomy 208600000X · License 036119616 (IL), J5691 (TX)
7710 MERCY RD STE 2000, Omaha, NE 68124

Other Identifiers 1

Other0533210001Dmerc

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John A Aucar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466450630
PECOS Enrollment IDI20061122000238, I20070802000165, I20190424000786, I20190510000220
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show John Aucar reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Medicine
7500 MERCY RD
Omaha, NE 68124
  • Reassigned Medicare billing, Nebraska and Iowa enrollments
  • Also billed through NPI 1518227859 (Iowa)
  • 1,045 clinicians in this Medicare group
Hospitalist
555 S 70TH ST
Lincoln, NE 68510
  • Reassigned Medicare billing, Nebraska enrollment
  • 525 clinicians in this Medicare group
Family Medicine
110 N 29TH ST, SUITE 201
Norfolk, NE 68701
  • Reassigned Medicare billing, Nebraska enrollment
  • 252 clinicians in this Medicare group
Surgical Critical Care
2316 E MEYER BLVD
Kansas City, MO 64132
  • Reassigned Medicare billing, Missouri enrollment
  • 53 clinicians in this Medicare group
Surgical Critical Care
22999 HWY 59 N
Kingwood, TX 77339
  • Reassigned Medicare billing, Texas enrollment
  • 99 clinicians in this Medicare group

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

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
24 services13 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
19 services19 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Chi Health Mercy Council Bluffs

Acute Care Hospitals · Council Bluffs, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160028
Location800 Mercy DriveCouncil Bluffs, IA 51503 · Pottawattamie County
Emergency services Birthing friendly

Centerpoint Medical Center

Acute Care Hospitals · Independence, MO
3/5 CMS rating
OwnershipProprietary
CMS Certification Number260095
Location19600 East 39th StreetIndependence, MO 64057 · Jackson County
Emergency services Birthing friendly

Hca Houston Healthcare Kingwood

Acute Care Hospitals · Kingwood, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450775
Location22999 Us Hwy 59Kingwood, TX 77325 · Harris County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
7710 MERCY RD STE 2000
OMAHA, NE 68124
Internal Medicine (Endocrinology, Diabetes & Metabolism)
7710 MERCY RD STE 2000
OMAHA, NE 68124
Surgery (Trauma Surgery)
7710 MERCY RD STE 2000
OMAHA, NE 68124
Internal Medicine (Gastroenterology)
7710 MERCY RD STE 2000
OMAHA, NE 68124
Internal Medicine (Gastroenterology)
7710 MERCY RD STE 2000
OMAHA, NE 68124
Surgery
7710 MERCY RD STE 2000
OMAHA, NE 68124
Internal Medicine (Gastroenterology)
7710 MERCY RD STE 2000
OMAHA, NE 68124
Surgery
7710 MERCY RD STE 2000
OMAHA, NE 68124

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 John Aucar's NPI number?

The NPI number for John Aucar is 1033141965. It was assigned to this individual provider in the NPPES registry on July 7, 2006.

Where is John Aucar located?

John Aucar practices at 7710 Mercy Rd Ste 2000, Omaha, NE 68124. The listed phone number is (402) 717-4909.

What is John Aucar's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is John Aucar enrolled in Medicare?

Yes. John Aucar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for John Aucar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Aucar reassigns Medicare benefits to 5 organizations: Alegent Creighton Clinic (Omaha, NE), Chi Health Clinic Specialty, LLC (Lincoln, NE), Faith Regional Physician Services, LLC (Norfolk, NE), Urgent Specialty Associates Of Missouri LLC (Kansas City, MO) and Urgent Specialty Associates Of Texas, PLLC (Kingwood, TX). Each 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 John Aucar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Aucar accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Nebraska, Blue Cross and Blue Shield of Texas and Cigna HealthCare of Florida, Inc. and 2 other insurers list John Aucar 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.

Is John Aucar affiliated with any hospitals?

According to CMS data, John Aucar is affiliated with Chi Health Mercy Council Bluffs, Centerpoint Medical Center and Hca Houston Healthcare Kingwood.

When was this NPI record last updated?

The NPPES record for John Aucar was last updated on June 10, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.