Doctor profile · Federal record
Dr. William Armstrong, MD
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · Ann Arbor, MI
- NPI 1487739553
- Accepts Medicare
- 50 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
325 Briarwood Circle, Building 5
Ann Arbor, MI 481081605
(734) 647-9000 - Mailing address
-
3621 S State St
Ann Arbor, MI 481081633
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 6, 2020
- Year of graduation
- 1976 — 50 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- Michigan #4301055513
- Medicaid
- MI #2605500
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487739553. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,698
Distinct HCPCS
10
Medicare allowed
$103,588
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 333 | 327 | $67 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 262 | 262 | $68 | |
76377 |
3d radiographic procedure with computerized image postprocessing | 134 | 134 | $38 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 130 | 121 | $99 | |
76377 |
3d radiographic procedure with computerized image postprocessing | 119 | 119 | $38 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 101 | 35 | $79 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 93 | 27 | $117 | |
93356 |
Heart muscle strain imaging | 73 | 73 | $12 | |
93356 |
Heart muscle strain imaging | 72 | 71 | $12 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 70 | 70 | $67 |
In context: peer comparison
Among 32 peers in this city , average services per provider: 92. This provider delivers 18× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,119
Patients
334
Total drug cost
$261,612
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 163 | 51 | $209,407 |
| Metoprolol Succinate | Generic | 144 | 50 | $3,435 |
| Atorvastatin Calcium | Generic | 138 | 47 | $2,136 |
| Lisinopril | Generic | 119 | 37 | $1,141 |
| Furosemide | Generic | 86 | 29 | $733 |
| Metoprolol Tartrate | Generic | 83 | 22 | $714 |
| Warfarin Sodium | Generic | 77 | 25 | $1,655 |
| Losartan Potassium | Generic | 72 | 24 | $1,431 |
| Rosuvastatin Calcium | Generic | 51 | 21 | $1,151 |
| Carvedilol | Generic | 45 | 15 | $634 |
Hospital affiliations
Frequently asked questions
What is Dr. William Armstrong's medical specialty?
Dr. William Armstrong practices Cardiovascular Disease Physician in Ann Arbor, MI.
Where does Dr. William Armstrong practice?
Dr. William Armstrong practices at 325 Briarwood Circle, Ann Arbor, MI 481081605. Office phone: 7346479000.
What is Dr. William Armstrong's NPI?
Dr. William Armstrong's National Provider Identifier (NPI) is 1487739553, issued by NPPES.
Does Dr. William Armstrong accept Medicare assignment?
Yes. Dr. William Armstrong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Armstrong commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306); 3d radiographic procedure with computerized image postprocessing (HCPCS 76377). Source: CMS Medicare Physician & Other Practitioners file.