Doctor profile · Federal record
Dr. Marissa Mahan, DNP, FNP-BC
Family Nurse Practitioner (CMS: Nurse Practitioner) · Family Nurse Practitioner · Chatham, IL
- NPI 1215531264
- Accepts Medicare
- MIPS 72.1 / 100 · 2023
- 6 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
101 E Plummer Blvd
Chatham, IL 626298047
(217) 483-3487
fax (217) 483-8150
Credentials & registration
- NPI registered
- November 2020 — 6 yrs on file
- Profile last updated
- May 20, 2024
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State licenses (2)
- Illinois #209021387 · Missouri #2020014749
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215531264. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
76
Distinct HCPCS
2
Medicare allowed
$6,956
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 46 | 38 | $103 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 30 | 28 | $74 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 55. This provider delivers 1.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
96
Patients
0
Total drug cost
$21,543
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Escitalopram Oxalate | Generic | 14 | 0 | $252 |
| Pantoprazole Sodium | Generic | 13 | 0 | $190 |
| Naproxen | Generic | 12 | 0 | $8 |
| Ozempic (Semaglutide) | Brand | 12 | 0 | $20,741 |
| Trazodone Hcl | Generic | 12 | 0 | $69 |
| Amlodipine Besylate | Generic | 11 | 0 | $140 |
| Atorvastatin Calcium | Generic | 11 | 0 | $113 |
| Fluconazole | Generic | 11 | 0 | $30 |
Hospital affiliations
Frequently asked questions
What is Dr. Marissa Mahan's medical specialty?
Dr. Marissa Mahan practices Family Nurse Practitioner in Chatham, IL.
Where does Dr. Marissa Mahan practice?
Dr. Marissa Mahan practices at 101 E Plummer Blvd, Chatham, IL 626298047. Office phone: 2174833487.
What is Dr. Marissa Mahan's NPI?
Dr. Marissa Mahan's National Provider Identifier (NPI) is 1215531264, issued by NPPES.
Does Dr. Marissa Mahan accept Medicare assignment?
Yes. Dr. Marissa Mahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marissa Mahan 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). Source: CMS Medicare Physician & Other Practitioners file.