Doctor profile · Federal record
Dr. William Barker, D.O.
Family Medicine Physician (CMS: Family Practice) · Chesterfield, MI
- NPI 1275554073
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
30795 23 Mile RD, Suite 205
Chesterfield, MI 480475720
(586) 421-3150
fax (586) 421-3151
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- March 11, 2021
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Michigan #5101013935
- Medicaid
- MI #4320330
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275554073. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
362
Distinct HCPCS
6
Medicare allowed
$31,653
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 176 | 90 | $125 | |
36415 |
Insertion of needle into vein for collection of blood sample | 79 | 59 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 35 | $88 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 35 | 35 | $130 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 15 | 15 | $15 | |
G0008 |
Administration of influenza virus vaccine | 14 | 14 | $31 |
In context: peer comparison
Among 17 peers in Chesterfield Family Medicine Physician, average services per provider: 83. This provider delivers 4.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,328
Patients
687
Total drug cost
$38,782
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 297 | 51 | $6,226 |
| Omeprazole | Generic | 244 | 64 | $4,433 |
| Levothyroxine Sodium | Generic | 215 | 59 | $4,147 |
| Alprazolam | Generic | 213 | 47 | $1,704 |
| Amlodipine Besylate | Generic | 175 | 51 | $1,747 |
| Atorvastatin Calcium | Generic | 158 | 55 | $3,257 |
| Metformin Hcl | Generic | 156 | 48 | $2,035 |
| Losartan Potassium | Generic | 153 | 40 | $2,283 |
| Prednisone | Generic | 109 | 61 | $361 |
| Lisinopril | Generic | 104 | 37 | $1,560 |
Hospital affiliations
Frequently asked questions
What is Dr. William Barker's medical specialty?
Dr. William Barker practices Family Medicine Physician in Chesterfield, MI.
Where does Dr. William Barker practice?
Dr. William Barker practices at 30795 23 Mile RD, Chesterfield, MI 480475720. Office phone: 5864213150.
What is Dr. William Barker's NPI?
Dr. William Barker's National Provider Identifier (NPI) is 1275554073, issued by NPPES.
Does Dr. William Barker accept Medicare assignment?
Yes. Dr. William Barker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Barker 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); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.