Doctor profile · Federal record
Dr. Mary Marshall, M.D.
Family Medicine Physician (CMS: Family Practice) · Grand Blanc, MI
- NPI 1245320589
- Accepts Medicare
- 29 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8195 S Saginaw St
Grand Blanc, MI 484391885
(810) 695-2210
fax (810) 695-9530
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- August 10, 2011
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Michigan #MM070680
- Medicaid
- MI #104238722
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245320589. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
266
Distinct HCPCS
6
Medicare allowed
$30,231
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 130 | 70 | $122 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 44 | 44 | $123 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 40 | 27 | $171 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 21 | 20 | $14 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 17 | 14 | $86 | |
G0008 |
Administration of influenza virus vaccine | 14 | 14 | $29 |
In context: peer comparison
Among 16 peers in Grand Blanc Family Medicine Physician, average services per provider: 79. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$17
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Exact Sciences Corporation | 1 | $17.14 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,224
Patients
375
Total drug cost
$90,607
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 214 | 60 | $3,838 |
| Lisinopril | Generic | 150 | 46 | $1,320 |
| Atorvastatin Calcium | Generic | 117 | 35 | $1,751 |
| Eliquis (Apixaban) | Brand | 83 | 19 | $72,461 |
| Simvastatin | Generic | 79 | 28 | $1,156 |
| Losartan Potassium | Generic | 74 | 25 | $1,528 |
| Sertraline Hcl | Generic | 70 | 20 | $804 |
| Amlodipine Besylate | Generic | 69 | 27 | $692 |
| Metoprolol Succinate | Generic | 66 | 23 | $1,951 |
| Duloxetine Hcl | Generic | 61 | 14 | $1,404 |
Frequently asked questions
What is Dr. Mary Marshall's medical specialty?
Dr. Mary Marshall practices Family Medicine Physician in Grand Blanc, MI.
Where does Dr. Mary Marshall practice?
Dr. Mary Marshall practices at 8195 S Saginaw St, Grand Blanc, MI 484391885. Office phone: 8106952210.
What is Dr. Mary Marshall's NPI?
Dr. Mary Marshall's National Provider Identifier (NPI) is 1245320589, issued by NPPES.
Does Dr. Mary Marshall accept Medicare assignment?
Yes. Dr. Mary Marshall accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Marshall commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.