Doctor profile · Federal record
Dr. Margaret Frey, DO
Neurology Physician (CMS: Neurology) · Owosso, MI
- NPI 1215134101
- Accepts Medicare
- MIPS 53.4 / 100 · 2023
- 19 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
819 N Shiawassee St Ste 110
Owosso, MI 488671601
(989) 723-1390
fax (989) 725-1415 - Additional location
-
4200 Fashion Square Blvd Ste 301
Saginaw, MI 486031375
(989) 729-4206
fax (989) 729-4207 - Additional location
-
4600 Garfield RD
Auburn, MI 486119369
(989) 729-4147
fax (989) 729-4157
Credentials & registration
- NPI registered
- July 2007 — 19 yrs on file
- Profile last updated
- September 11, 2023
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Michigan #5101017273
- Medicaid
- MI #1215134101
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215134101. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
287
Distinct HCPCS
5
Medicare allowed
$24,731
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 159 | 116 | $95 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 49 | 36 | $65 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 40 | 40 | $131 | |
95874 |
Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | 27 | 12 | $19 | |
95816 |
Measurement of brain wave activity (eeg), awake and drowsy | 12 | 12 | $54 |
In context: peer comparison
Among 4 peers in Owosso Neurology Physician, average services per provider: 44. This provider delivers 6.5× the peer median.Open Payments
Industry payments received
All-time total
$18,861
Transactions
52
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Biogen, INC. | 18 | $17,800.48 | |
| Abbvie INC. | 27 | $845.02 | |
| Sk Life Science, INC. | 1 | $88.20 | |
| Octapharma USA, INC. | 1 | $25.97 | |
| Catalyst Pharmaceuticals, INC. | 1 | $25.40 | |
| Ucb, INC. | 1 | $21.69 | |
| Jazz Pharmaceuticals INC. | 1 | $21.48 | |
| Argenx US, INC. | 1 | $18.61 | |
| Alexion Pharmaceuticals, INC. | 1 | $14.45 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,706
Patients
337
Total drug cost
$2,227,385
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 203 | 47 | $4,646 |
| Lamotrigine | Generic | 194 | 26 | $4,346 |
| Pregabalin | Generic | 167 | 33 | $5,641 |
| Levetiracetam | Generic | 155 | 33 | $8,394 |
| Topiramate | Generic | 128 | 32 | $2,875 |
| Duloxetine Hcl | Generic | 116 | 32 | $6,043 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 115 | 32 | $5,856 |
| Lacosamide | Generic | 97 | 17 | $23,472 |
| Propranolol Hcl | Generic | 95 | 32 | $4,362 |
| Clonazepam | Generic | 88 | 18 | $1,519 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Frey's medical specialty?
Dr. Margaret Frey practices Neurology Physician in Owosso, MI.
Where does Dr. Margaret Frey practice?
Dr. Margaret Frey practices at 819 N Shiawassee St Ste 110, Owosso, MI 488671601. Office phone: 9897231390.
What is Dr. Margaret Frey's NPI?
Dr. Margaret Frey's National Provider Identifier (NPI) is 1215134101, issued by NPPES.
Does Dr. Margaret Frey accept Medicare assignment?
Yes. Dr. Margaret Frey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Frey 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); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.