Doctor profile · Federal record

Dr. Terrence Brennan, M.D.

Internal Medicine Physician · Warren, MI

  • NPI 1366418667
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
27472 Schoenherr RD Ste 100
Warren, MI 480886675
(586) 751-8844
fax (586) 751-8596

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
January 5, 2023
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #4301037453
Medicaid
MI #2724805

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366418667. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,169
Distinct HCPCS
10
Medicare allowed
$90,770
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 201 131 $129
99213 Established patient office or other outpatient visit, 20-29 minutes 187 129 $91
99497 Advance care planning, first 30 minutes 183 181 $83
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 179 179 $130
G0444 Annual depression screening, 5 to 15 minutes 177 177 $18
71045 X-ray of chest, 1 view 87 83 $26
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 77 71 $15
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 18 15 $52
81002 Urinalysis, manual test 16 11 $3
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 15 15 $69

In context: peer comparison

Among 25 peers in Warren Internal Medicine Physician, average services per provider: 127. This provider delivers 9.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$120
Transactions
6
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Grifols USA, LLC 2 $40.03
GlaxoSmithKline, LLC. 2 $35.78
Mylan Specialty L.P. 1 $23.93
Genzyme Corporation 1 $20.45

By nature of payment

Food and Beverage
$120

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,750
Patients
747
Total drug cost
$39,717
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 387 102 $6,463
Simvastatin Generic 362 90 $4,311
Levothyroxine Sodium Generic 356 86 $6,067
Amlodipine Besylate Generic 196 56 $1,980
Lisinopril Generic 182 50 $2,349
Metformin Hcl Generic 180 51 $2,226
Omeprazole Generic 176 46 $2,647
Losartan Potassium Generic 175 53 $4,417
Allopurinol Generic 168 45 $2,231
Alprazolam Generic 111 27 $559

Frequently asked questions

Auto-generated from federal data
What is Dr. Terrence Brennan's medical specialty?
Dr. Terrence Brennan practices Internal Medicine Physician in Warren, MI.
Where does Dr. Terrence Brennan practice?
Dr. Terrence Brennan practices at 27472 Schoenherr RD Ste 100, Warren, MI 480886675. Office phone: 5867518844.
What is Dr. Terrence Brennan's NPI?
Dr. Terrence Brennan's National Provider Identifier (NPI) is 1366418667, issued by NPPES.
What procedures does Dr. Terrence Brennan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.