Doctor profile · Federal record
Dr. Marissa Krzyzan, FNP
Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Buffalo, NY
- NPI 1205598521
- Accepts Medicare
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2950 Elmwood Ave
Buffalo, NY 142171390
(716) 447-6100
Credentials & registration
- NPI registered
- October 2021 — 5 yrs on file
- Profile last updated
- March 6, 2025
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State licenses (2)
- New York #F347951-01 · New York #347951
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205598521. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
136
Distinct HCPCS
3
Medicare allowed
$14,446
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 72 | 69 | $99 | |
99285 |
Emergency department visit with high level of medical decision making | 42 | 40 | $144 | |
99283 |
Emergency department visit with low level of medical decision making | 22 | 22 | $59 |
In context: peer comparison
Among 57 peers in this city , average services per provider: 74. This provider delivers 1.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
291
Patients
288
Total drug cost
$2,373
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 74 | 72 | $194 |
| Ibuprofen | Generic | 38 | 38 | $246 |
| Ondansetron Odt (Ondansetron) | Brand | 34 | 34 | $338 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 33 | 32 | $114 |
| Methocarbamol | Generic | 33 | 33 | $243 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 25 | 25 | $195 |
| Cephalexin | Generic | 15 | 15 | $94 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 14 | 14 | $49 |
| Cefpodoxime Proxetil | Generic | 13 | 13 | $805 |
| Doxycycline Hyclate | Generic | 12 | 12 | $97 |
Frequently asked questions
What is Dr. Marissa Krzyzan's medical specialty?
Dr. Marissa Krzyzan practices Family Nurse Practitioner in Buffalo, NY.
Where does Dr. Marissa Krzyzan practice?
Dr. Marissa Krzyzan practices at 2950 Elmwood Ave, Buffalo, NY 142171390. Office phone: 7164476100.
What is Dr. Marissa Krzyzan's NPI?
Dr. Marissa Krzyzan's National Provider Identifier (NPI) is 1205598521, issued by NPPES.
Does Dr. Marissa Krzyzan accept Medicare assignment?
Yes. Dr. Marissa Krzyzan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marissa Krzyzan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.