Doctor profile · Federal record
Dr. Patrick Brennan, D.O.
Family Medicine Physician (CMS: Family Practice) · South Lyon, MI
- NPI 1770582793
- Accepts Medicare
- 25 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
22024 Pontiac Trl
South Lyon, MI 481789410
(248) 437-2525
fax (248) 437-2526
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Michigan #PB5101014989
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770582793. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,704
Distinct HCPCS
10
Medicare allowed
$104,928
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 325 | 163 | $125 | |
36415 |
Insertion of needle into vein for collection of blood sample | 299 | 174 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 241 | 168 | $10 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 227 | 164 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 188 | 124 | $90 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 135 | 135 | $128 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 127 | 108 | $13 | |
83735 |
Magnesium level | 103 | 82 | $7 | |
83036 |
Hemoglobin a1c level | 88 | 68 | $9 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 83 | 74 | $16 |
In context: peer comparison
Among 6 peers in South Lyon Family Medicine Physician, average services per provider: 60. This provider delivers 45× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,764
Patients
833
Total drug cost
$43,310
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 364 | 106 | $5,869 |
| Lisinopril | Generic | 303 | 92 | $3,506 |
| Levothyroxine Sodium | Generic | 271 | 84 | $5,561 |
| Amlodipine Besylate | Generic | 268 | 79 | $2,891 |
| Omeprazole | Generic | 179 | 54 | $2,919 |
| Losartan Potassium | Generic | 166 | 51 | $3,632 |
| Metoprolol Succinate | Generic | 153 | 45 | $3,888 |
| Gabapentin | Generic | 146 | 41 | $4,473 |
| Alprazolam | Generic | 145 | 45 | $553 |
| Simvastatin | Generic | 142 | 44 | $1,829 |
Frequently asked questions
What is Dr. Patrick Brennan's medical specialty?
Dr. Patrick Brennan practices Family Medicine Physician in South Lyon, MI.
Where does Dr. Patrick Brennan practice?
Dr. Patrick Brennan practices at 22024 Pontiac Trl, South Lyon, MI 481789410. Office phone: 2484372525.
What is Dr. Patrick Brennan's NPI?
Dr. Patrick Brennan's National Provider Identifier (NPI) is 1770582793, issued by NPPES.
Does Dr. Patrick Brennan accept Medicare assignment?
Yes. Dr. Patrick Brennan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Brennan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, comprehensive group of blood chemicals (HCPCS 80053). Source: CMS Medicare Physician & Other Practitioners file.