Doctor profile · Federal record
Dr. Marissa Martz, MD
Psychiatry Physician (CMS: Psychiatry) · Psychiatry Physician · Grand Rapids, MI
- NPI 1275063919
- Accepts Medicare
- 9 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 68Th St Se
Grand Rapids, MI 495486927
(616) 455-5000
fax (616) 455-5960
Credentials & registration
- NPI registered
- June 2017 — 9 yrs on file
- Profile last updated
- November 22, 2022
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State licenses (2)
- Michigan #4301504230 · Rhode Island #LP04043
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275063919. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
476
Distinct HCPCS
5
Medicare allowed
$39,791
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 381 | 63 | $76 | |
99239 |
Hospital discharge day management, more than 30 minutes | 38 | 34 | $108 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 25 | 23 | $168 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 18 | 11 | $48 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 14 | 14 | $120 |
In context: peer comparison
Among 32 peers in Grand Rapids Psychiatry Physician, average services per provider: 75. This provider delivers 6.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
29
Patients
27
Total drug cost
$429
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trazodone Hcl | Generic | 17 | 15 | $218 |
| Hydroxyzine Hcl | Generic | 12 | 12 | $211 |
Frequently asked questions
What is Dr. Marissa Martz's medical specialty?
Dr. Marissa Martz practices Psychiatry Physician in Grand Rapids, MI.
Where does Dr. Marissa Martz practice?
Dr. Marissa Martz practices at 300 68Th St Se, Grand Rapids, MI 495486927. Office phone: 6164555000.
What is Dr. Marissa Martz's NPI?
Dr. Marissa Martz's National Provider Identifier (NPI) is 1275063919, issued by NPPES.
Does Dr. Marissa Martz accept Medicare assignment?
Yes. Dr. Marissa Martz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marissa Martz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.