Doctor profile · Federal record
Dr. Margaret Gillis, MD
Emergency Medical Services (Emergency Medicine) Physician (CMS: Emergency Medicine) · Ann Arbor, MI
- NPI 1477590123
- Accepts Medicare
- 24 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5301 E Huron River Dr, Emergency Department Business Office
Ann Arbor, MI 48106
(734) 712-3962 - Mailing address
-
2000 Green RD, Epmg PC
Ann Arbor, MI 481051598
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- December 20, 2021
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207PE0004X — NUCC code
- State license (1)
- Michigan #079617
- Medicaid (2)
- MI #104789596 · MI #104789602
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477590123. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
386
Distinct HCPCS
4
Medicare allowed
$60,559
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 237 | 235 | $181 | |
99284 |
Emergency department visit with moderate level of medical decision making | 83 | 82 | $123 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 33 | 26 | $8 | |
99291 |
Critical care, first 30-74 minutes | 33 | 32 | $218 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 96. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$135
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| UCB, Inc. | 1 | $134.50 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
24
Patients
24
Total drug cost
$116
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefdinir | Generic | 12 | 12 | $80 |
| Oxycodone Hcl | Generic | 12 | 12 | $36 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Gillis's medical specialty?
Dr. Margaret Gillis practices Emergency Medical Services (Emergency Medicine) Physician in Ann Arbor, MI.
Where does Dr. Margaret Gillis practice?
Dr. Margaret Gillis practices at 5301 E Huron River Dr, Ann Arbor, MI 48106. Office phone: 7347123962.
What is Dr. Margaret Gillis's NPI?
Dr. Margaret Gillis's National Provider Identifier (NPI) is 1477590123, issued by NPPES.
Does Dr. Margaret Gillis accept Medicare assignment?
Yes. Dr. Margaret Gillis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Gillis commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.