Doctor profile · Federal record
Dr. Mary Marshall, APN
Nurse Practitioner · Registered Nurse · Rockford, IL
- NPI 1770030801
- Accepts Medicare
- 10 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1340 Charles St, Suite 300
Rockford, IL 611042200
(779) 696-5888 - Mailing address
-
Po Box 1567
Rockford, IL 611100067
Credentials & registration
- NPI registered
- September 2016 — 10 yrs on file
- Profile last updated
- October 21, 2016
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State licenses (2)
- Illinois #209-014991 · Illinois #041343459
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770030801. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
672
Distinct HCPCS
4
Medicare allowed
$65,291
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 566 | 484 | $104 | |
36415 |
Insertion of needle into vein for collection of blood sample | 63 | 50 | $8 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $137 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 16 | 16 | $147 |
In context: peer comparison
Among 37 peers in Rockford Nurse Practitioner, average services per provider: 189. This provider delivers 3.6× the peer median.Open Payments
Industry payments received
All-time total
$10,775
Transactions
34
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 33 | $10,653.73 | |
| Lexicon Pharmaceuticals, INC. | 1 | $121.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,057
Patients
1,022
Total drug cost
$309,106
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 388 | 138 | $6,915 |
| Atorvastatin Calcium | Generic | 310 | 105 | $4,881 |
| Amlodipine Besylate | Generic | 256 | 87 | $2,115 |
| Rosuvastatin Calcium | Generic | 250 | 72 | $3,704 |
| Metoprolol Tartrate | Generic | 230 | 74 | $1,794 |
| Carvedilol | Generic | 228 | 84 | $2,677 |
| Lisinopril | Generic | 224 | 75 | $1,719 |
| Furosemide | Generic | 199 | 79 | $1,461 |
| Isosorbide Mononitrate ER (Isosorbide Mononitrate) | Brand | 175 | 57 | $3,146 |
| Losartan Potassium | Generic | 158 | 50 | $1,825 |
Hospital affiliations
Frequently asked questions
What is Dr. Mary Marshall's medical specialty?
Dr. Mary Marshall practices Nurse Practitioner in Rockford, IL.
Where does Dr. Mary Marshall practice?
Dr. Mary Marshall practices at 1340 Charles St, Rockford, IL 611042200. Office phone: 7796965888.
What is Dr. Mary Marshall's NPI?
Dr. Mary Marshall's National Provider Identifier (NPI) is 1770030801, 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); Insertion of needle into vein for collection of blood sample (HCPCS 36415); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.