Doctor profile · Federal record

Dr. Brett Linzer, M.D.

Internal Medicine Physician · Pediatrics Physician · Oconomowoc, WI

  • NPI 1083686653
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1185 Corporate Center Dr, Prohealth Care Medical Associates, INC.
Oconomowoc, WI 530664887
(262) 928-8400

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
April 13, 2012
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wisconsin #42014
Medicaid
WI #32629400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083686653. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
674
Distinct HCPCS
9
Medicare allowed
$75,465
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 290 177 $120
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 188 188 $122
99213 Established patient office or other outpatient visit, 20-29 minutes 82 71 $85
G0008 Administration of influenza virus vaccine 26 26 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 23 23 $75
99495 Transitional care management services for problem of at least moderate complexity 23 16 $193
G0009 Administration of pneumococcal vaccine 17 17 $29
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing 13 13 $5
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 12 12 $281

In context: peer comparison

Among 6 peers in this city , average services per provider: 152. This provider delivers 4.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,115
Patients
876
Total drug cost
$47,755
Drug Type Claims Patients Total cost
Losartan Potassium Generic 452 129 $6,306
Atorvastatin Calcium Generic 332 98 $4,188
Lisinopril Generic 289 81 $2,578
Levothyroxine Sodium Generic 285 67 $4,935
Metoprolol Succinate Generic 248 62 $4,129
Amlodipine Besylate Generic 203 58 $1,561
Hydrochlorothiazide Generic 200 59 $599
Omeprazole Generic 191 55 $3,276
Simvastatin Generic 177 52 $1,863
Metformin Hcl Er (Metformin Hcl) Brand 153 44 $2,732

Frequently asked questions

Auto-generated from federal data
What is Dr. Brett Linzer's medical specialty?
Dr. Brett Linzer practices Internal Medicine Physician in Oconomowoc, WI.
Where does Dr. Brett Linzer practice?
Dr. Brett Linzer practices at 1185 Corporate Center Dr, Oconomowoc, WI 530664887. Office phone: 2629288400.
What is Dr. Brett Linzer's NPI?
Dr. Brett Linzer's National Provider Identifier (NPI) is 1083686653, issued by NPPES.
What procedures does Dr. Brett Linzer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.