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DR. DIEGO COLE VILLACIS M.D.
NPI 1124399449
Orthopaedic Surgery in Summit, WI

Active since January 18, 2012PECOS EnrolledAccepts Medicare Assignment
36500 AURORA DR, SUMMIT, WI 53066(262) 434-1000(262) 434-5050 Get Directions Write a Review

NPPES record last updated: July 17, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 17, 2024, Dec 6, 2021, Oct 29, 2018 and 1 more (4 updates tracked since 2018).

About Dr. Diego Cole Villacis M.d. NPPES

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

DR. DIEGO COLE VILLACIS M.D. (NPI 1124399449) is an individual orthopaedic surgery provider in Summit, Wisconsin, licensed in Wisconsin (75491) and active in the NPI registry since January 2012. He is enrolled in Medicare PECOS, is affiliated with Aurora Memorial Hospital Burlington, and maintains a secondary practice location in Lincolnshire.

NPPES Registry Identity

NPI1124399449
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. DIEGO COLE VILLACISCredential: M.D.
Location Address36500 AURORA DRSummit, WI 53066-4899
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(262) 434-1000
Fax(262) 434-5050
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJanuary 18, 2012
Last NPPES UpdateJuly 17, 20244 updates tracked since enumeration
NPPES CertifiedJuly 17, 2024
✔ NPI 1124399449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Licenses✔ Licensed in WI · 75491✔ Licensed in IL · 036139529
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedOrthopaedic Surgery · Sports MedicineTaxonomy 207XX0005X · License 036139529 (IL)
36500 AURORA DR, Summit, WI 53066
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Secondary Practice Location 1

Location 1920 Milwaukee AveLincolnshire, IL 60069-3839 · Phone (847) 866-7846 · Fax (224) 251-4567

Other Identifiers 1

Medicaid100174818WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.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. Diego Cole Villacis 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 ID8224322276
PECOS Enrollment IDI20210730003215
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

3

Medicare enrollment records show Diego Villacis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aurora Medical Group, Inc.
23 mi
Obstetrics & Gynecology
8905 W LINCOLN AVE, SUITE 515
West Allis, WI 53227
  • Reassigned Medicare billing, Wisconsin enrollment
  • 4,609 clinicians in this Medicare group
NPI 1457592735 (414) 328-8650
Aurora Advanced Healthcare, Inc.
27 mi
Family Medicine
3003 W GOOD HOPE RD
Milwaukee, WI 53209
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,615 clinicians in this Medicare group
NPI 1265629133 (414) 352-3100
Dupage Medical Group Ltd
88 mi
Multi-Specialty
1100 W 31ST ST, STE 300
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 1,061 clinicians in this Medicare group
NPI 1801833983 (630) 469-9200

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 11

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
242 services162 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
133 services107 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
77 services63 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
62 services62 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
36 services36 patients
Prosthetic repair of shoulder joint, total shoulder 23472
Total shoulder prosthetic repair is a surgical procedure to replace a damaged shoulder joint with artificial components. It aims to relieve pain and restore mobility. The procedure involves replacing the ball (humeral head) and socket (glenoid) of the shoulder joint.
29 services29 patients

Hospital Affiliations CMS Care Compare 4

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

Aurora Memorial Hospital Burlington

Acute Care Hospitals · Burlington, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520059
Location252 Mchenry StBurlington, WI 53105 · Racine County
Emergency services

Aurora Lakeland Medical Center

Acute Care Hospitals · Elkhorn, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520102
LocationW3985 County Road NnElkhorn, WI 53121 · Walworth County
Emergency services Birthing friendly

Aurora Medical Center - Summit

Acute Care Hospitals · Summit, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520206
Location36500 Aurora DriveSummit, WI 53066 · Waukesha County
Emergency services Birthing friendly

Aurora Medical Center

Acute Care Hospitals · Grafton, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520207
Location975 Port Washington RoadGrafton, WI 53024 · Ozaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53066 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

BIJAN NEZAMI
Internal Medicine (Critical Care Medicine)
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
KEVIN L EGGLESTON M.D.
Hospitalist
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-4711
KODY LEWIS PA C
Physician Assistant
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
REBECCA M STRIET M.D.
Preventive Medicine (Undersea and Hyperbaric Medicine)
36500 AURORA DR, DEPARTMENT OF WOUND CARE/HYPERBARIC MEDICINE 3RD FLOOR
SUMMIT, WI 53066
Waukesha County (262) 434-5000
REBECCA SUSA DPT, ATC-L
Physical Therapist
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-2600
VIJAY JOHNSON M.D
Internal Medicine (Critical Care Medicine)
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
MRS. KELLY S CAMPBELL ANP-BC
Nurse Practitioner
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
DR. BRETT MCLACHLAN M.D.
Emergency Medicine
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000

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 Diego Villacis's NPI number?

The NPI number for Diego Villacis is 1124399449. It was assigned to this individual provider in the NPPES registry on January 18, 2012.

Where is Diego Villacis located?

Diego Villacis practices at 36500 Aurora Dr, Summit, WI 53066. The listed phone number is (262) 434-1000.

What is Diego Villacis's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Diego Villacis enrolled in Medicare?

Yes. Diego Villacis 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 Diego Villacis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diego Villacis reassigns Medicare benefits to 3 organizations: Aurora Medical Group, Inc. (West Allis, WI), Aurora Advanced Healthcare, Inc. (Milwaukee, WI) and Dupage Medical Group Ltd (Downers Grove, IL). 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 Diego Villacis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Diego Villacis accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health and 2 other insurers list Diego Villacis 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 Diego Villacis affiliated with any hospitals?

According to CMS data, Diego Villacis is affiliated with Aurora Memorial Hospital Burlington, Aurora Lakeland Medical Center, Aurora Medical Center - Summit and Aurora Medical Center.

When was this NPI record last updated?

The NPPES record for Diego Villacis was last updated on July 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.