Doctor profile · Federal record

Dr. Brett McLachlan, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Summit, WI

  • NPI 1023452661
  • Accepts Medicare
  • MIPS 97.4 / 100 · 2023
  • 13 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
Additional location
2000 Ogden Ave
Aurora, IL 605047222
(847) 697-8868
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
April 2013 — 13 yrs on file
Profile last updated
November 5, 2024
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Wisconsin #63882-20 · Illinois #036.139900
Medicaid
WI #10043971

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023452661. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
446
Distinct HCPCS
4
Medicare allowed
$54,075
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 197 191 $178
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 135 117 $8
99284 Emergency department visit with moderate level of medical decision making 75 75 $123
99291 Critical care, first 30-74 minutes 39 39 $221

In context: peer comparison

Among 7 peers in this city , average services per provider: 93. This provider delivers 4.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
83
Patients
83
Total drug cost
$478
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 23 23 $187
Cephalexin Generic 19 19 $179
Ibuprofen Generic 17 17 $54
Prednisone Generic 12 12 $23
Tramadol Hcl Generic 12 12 $36

Frequently asked questions

Auto-generated from federal data
What is Dr. Brett McLachlan's medical specialty?
Dr. Brett McLachlan practices Emergency Medicine Physician in Summit, WI.
Where does Dr. Brett McLachlan practice?
Dr. Brett McLachlan practices at 36500 Aurora Dr, Summit, WI 530664899. Office phone: 2624341000.
What is Dr. Brett McLachlan's NPI?
Dr. Brett McLachlan's National Provider Identifier (NPI) is 1023452661, issued by NPPES.
Does Dr. Brett McLachlan accept Medicare assignment?
Yes. Dr. Brett McLachlan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brett McLachlan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.