Doctor profile · Federal record
Dr. Marisha Cook, M. D
Allergy Physician (CMS: Allergy/Immunology) · Rockford, IL
- NPI 1356487904
- Accepts Medicare
- 20 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2350 N Rockton Ave
Rockford, IL 611033600
(815) 971-2000
fax (815) 971-2585
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- February 23, 2026
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207KA0200X — NUCC code
- State license (1)
- Illinois #036128205
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356487904. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,189
Distinct HCPCS
6
Medicare allowed
$22,600
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 423 | 28 | $4 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 374 | 16 | $3 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 156 | 103 | $95 | |
95024 |
Test for allergy using allergenic extract injected into skin | 151 | 23 | $1 | |
95018 |
Test for allergy using combination of methods with drug or biological | 49 | 23 | $7 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 36 | 36 | $127 |
In context: peer comparison
Among 1 peers in Rockford Allergy Physician, average services per provider: 198. This provider delivers 6.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
690
Patients
195
Total drug cost
$118,966
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 122 | 37 | $1,976 |
| Fluticasone Propionate | Generic | 121 | 40 | $2,516 |
| Azelastine Hcl | Generic | 76 | 30 | $2,327 |
| Ipratropium Bromide | Generic | 63 | 18 | $2,525 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 50 | 27 | $1,929 |
| Levocetirizine Dihydrochloride | Generic | 47 | 16 | $747 |
| Mometasone Furoate | Generic | 36 | 0 | $2,674 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 30 | 0 | $37,344 |
| Epinephrine | Generic | 30 | 27 | $5,410 |
| Advair Hfa (Fluticasone Propion/Salmeterol) | Brand | 22 | 0 | $16,784 |
Frequently asked questions
What is Dr. Marisha Cook's medical specialty?
Dr. Marisha Cook practices Allergy Physician in Rockford, IL.
Where does Dr. Marisha Cook practice?
Dr. Marisha Cook practices at 2350 N Rockton Ave, Rockford, IL 611033600. Office phone: 8159712000.
What is Dr. Marisha Cook's NPI?
Dr. Marisha Cook's National Provider Identifier (NPI) is 1356487904, issued by NPPES.
Does Dr. Marisha Cook accept Medicare assignment?
Yes. Dr. Marisha Cook accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marisha Cook commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.