Doctor profile · Federal record

Dr. Diego Villacis, M.D.

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery Physician · Sports Medicine (Orthopaedic Surgery) Physician · Summit, WI

  • NPI 1124399449
  • Accepts Medicare
  • 16 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
36500 Aurora Dr
Summit, WI 530664899
(262) 434-1000
fax (262) 434-5050
Additional location
920 Milwaukee Ave
Lincolnshire, IL 600693839
(847) 866-7846
fax (224) 251-4567
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
January 2012 — 14 yrs on file
Profile last updated
July 17, 2024
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207X00000X — NUCC code
State licenses (2)
Wisconsin #75491 · Illinois #036139529
Medicaid
WI #100174818

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124399449. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
772
Distinct HCPCS
10
Medicare allowed
$111,475
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 300 206 $83
J1040 Injection, methylprednisolone acetate, 80 mg 104 83 $12
20610 Aspiration and/or injection of fluid from large joint 94 82 $62
99203 New patient office or other outpatient visit, 30-44 minutes 73 73 $104
99214 Established patient office or other outpatient visit, 30-39 minutes 70 67 $117
23472 Prosthetic repair of shoulder joint, total shoulder 23 23 $1,314
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 21 21 $122
29827 Repair of shoulder rotator cuff using an endoscope 20 20 $977
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope 19 19 $155
99212 Established patient office or other outpatient visit, 10-19 minutes 19 17 $53

In context: peer comparison

Among 3 peers in this city , average services per provider: 50. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25,016
Transactions
16
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Shoulder Innovations, Inc. 13 $21,947.25
Medical Device Business Services, Inc. 1 $2,625.00
Stryker Corporation 1 $430.00
Globus Medical, Inc. 1 $14.06

By nature of payment

Consulting Fee
$21,305
Travel and Lodging
$3,207
Food and Beverage
$505

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
258
Patients
212
Total drug cost
$3,006
Drug Type Claims Patients Total cost
Methylprednisolone Generic 169 152 $1,480
Celecoxib Generic 42 32 $1,403
Meloxicam Generic 36 28 $111
Amoxicillin Generic 11 0 $11

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Diego Villacis's medical specialty?
Dr. Diego Villacis practices Orthopaedic Surgery Physician in Summit, WI.
Where does Dr. Diego Villacis practice?
Dr. Diego Villacis practices at 36500 Aurora Dr, Summit, WI 530664899. Office phone: 2624341000.
What is Dr. Diego Villacis's NPI?
Dr. Diego Villacis's National Provider Identifier (NPI) is 1124399449, issued by NPPES.
Does Dr. Diego Villacis accept Medicare assignment?
Yes. Dr. Diego Villacis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diego Villacis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Injection, methylprednisolone acetate, 80 mg (HCPCS J1040); Aspiration and/or injection of fluid from large joint (HCPCS 20610). Source: CMS Medicare Physician & Other Practitioners file.