National Provider Identifier
Marissa J Krzyzan, FNP
Marissa J Krzyzan, FNP is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner in Buffalo, NY and a listed phone number of (716) 447-6100.
Source: public NPPES record, last updated March 06, 2025. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.
Profile Overview
- NPI
- 1205598521
- Provider Type
- Individual
- Primary Specialty
- Family Nurse Practitioner
- Enumeration Date
- October 13, 2021
- Last Updated
- March 06, 2025
Practice Location
- 2950 Elmwood Ave
- Buffalo, NY 14217-1390
Phone: (716) 447-6100
Specialties
- Family Nurse Practitioner (363LF0000X)
- Nurse Practitioner (363L00000X)
Browse Similar Providers
See more providers in the Nurse Practitioner classification in Buffalo, NY.
Medicare Part B Activity
Reported 74 Medicare fee-for-service service lines in 2024.
Peer comparison
Compared to Nurse Practitioner providers in the Buffalo, NY metro area.
This provider is in the 28th percentile for Medicare service volume.
Lower volume than many peers.
Performs 52% fewer Medicare services than the peer median.
Higher than 217 of 775 peers.
- Activity Percentile
- 28.0%
- Rank by Services
- 555 of 775
- Total Services
- 74
- Est. Allowed Value
- $7,238.34
- Dataset Year
- 2024
- Drug Code Share
- 0.0%
Estimated allowed value reflects Medicare fee-for-service allowed amounts only. It does not include Medicare Advantage, commercial insurance, cash-pay services, or employment compensation.
Peers are grouped by the broader Nurse Practitioner classification rather than the exact subspecialty label shown elsewhere on the page.
Percentile distribution
Each bar represents a 10-point percentile band of peers by total Medicare services for Nurse Practitioner across the Buffalo, NY metro area. Taller bars indicate higher service-volume bands. Highlighted bar marks this provider's percentile band.
Observed service range: 11 to 11,907 total Medicare services.
Top Clinical Services
- 99284: Emergency department visit with moderate level of medical decision making
39 services | $3,760.05
- 99285: Emergency department visit with high level of medical decision making
18 services | $2,517.76
- 99283: Emergency department visit with low level of medical decision making
17 services | $960.53
Biography
Marissa J. Krzyzan, FNP, is a New York-licensed family nurse practitioner based in Buffalo.
Full Record
- NPI
- 1205598521
- Entity Type
- Individual
- Last Name
- Krzyzan
- First Name
- Marissa
- Middle Name
- J
- Credential
- FNP
- Mailing Street Address
- 2950 Elmwood Ave
- Mailing City
- Buffalo
- Mailing State
- NY
- Mailing ZIP Code
- 14217-1390
- Mailing Country
- US
- Mailing Phone
- (716) 447-6100
- Practice Street Address
- 2950 Elmwood Ave
- Practice City
- Buffalo
- Practice State
- NY
- Practice ZIP Code
- 14217-1390
- Practice Country
- US
- Practice Phone
- (716) 447-6100
- Enumeration Date
- October 13, 2021
- Last Updated
- March 06, 2025
- Sex
- Female
- Sole Proprietor
- No
- Certification Date
- March 06, 2025
- Taxonomies
- Family Nurse Practitioner (363LF0000X), Nurse Practitioner (363L00000X)