Doctor profile · Federal record
Dr. Brent Williams, MD
Internal Medicine Physician · Geriatric Medicine (Internal Medicine) Physician · Ann Arbor, MI
- NPI 1447340831
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000 - Mailing address
-
3621 S State St
Ann Arbor, MI 481081633
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- March 11, 2020
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #4301054344
- Medicaid
- MI #2589872
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447340831. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
228
Distinct HCPCS
8
Medicare allowed
$17,817
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 61 | 44 | $98 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 38 | 37 | $67 | |
99421 |
Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes | 36 | 27 | $13 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 25 | 25 | $130 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 20 | 12 | $90 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 16 | 13 | $145 | |
99422 |
Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes | 16 | 11 | $26 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 16 | 13 | $64 |
In context: peer comparison
Among 135 peers in Ann Arbor Internal Medicine Physician, average services per provider: 77. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
602
Patients
81
Total drug cost
$45,006
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 100 | 25 | $2,137 |
| Levothyroxine Sodium | Generic | 64 | 16 | $1,363 |
| Rosuvastatin Calcium | Generic | 53 | 16 | $778 |
| Lisinopril | Generic | 42 | 12 | $829 |
| Omeprazole | Generic | 42 | 0 | $920 |
| Tamsulosin Hcl | Generic | 42 | 0 | $656 |
| Hydrochlorothiazide | Generic | 38 | 12 | $166 |
| Losartan Potassium | Generic | 36 | 0 | $425 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 35 | 0 | $379 |
| Eliquis (Apixaban) | Brand | 30 | 0 | $34,931 |
Frequently asked questions
What is Dr. Brent Williams's medical specialty?
Dr. Brent Williams practices Internal Medicine Physician in Ann Arbor, MI.
Where does Dr. Brent Williams practice?
Dr. Brent Williams practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Brent Williams's NPI?
Dr. Brent Williams's National Provider Identifier (NPI) is 1447340831, issued by NPPES.
What procedures does Dr. Brent Williams 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); Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes (HCPCS 99421). Source: CMS Medicare Physician & Other Practitioners file.