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MARISSA J KRZYZAN FNP
NPI 1205598521
Nurse Practitioner - Family in Buffalo, NY

Active since October 13, 2021PECOS EnrolledAccepts Medicare Assignment
2950 ELMWOOD AVE, BUFFALO, NY 14217(716) 447-6100 Get Directions Write a Review

NPPES record last updated: March 6, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Mar 6, 2025, Jan 20, 2022, Oct 13, 2021 (3 updates tracked since 2021).

About Marissa J Krzyzan Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARISSA J KRZYZAN FNP (NPI 1205598521) is an individual family provider in Buffalo, New York, licensed in New York (F347951-01) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS, is affiliated with Sisters Of Charity Hospital, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1205598521
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARISSA J KRZYZANCredential: FNP
Location Address2950 ELMWOOD AVEBuffalo, NY 14217-1390
Mailing Address2950 Elmwood AveBuffalo, NY 14217-1390 · (716) 447-6100
Phone(716) 447-6100
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateOctober 13, 2021
Last NPPES UpdateMarch 6, 20253 updates tracked since enumeration
NPPES CertifiedMarch 6, 2025
✔ NPI 1205598521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in NY · F347951-01
Also ListedNurse PractitionerTaxonomy 363L00000X · License 347951 (NY)
2950 ELMWOOD AVE, Buffalo, NY 14217
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marissa J Krzyzan Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284028861
PECOS Enrollment IDI20220224000759
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
39 services39 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
18 services18 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
17 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Sisters Of Charity Hospital

Acute Care Hospitals · Buffalo, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330078
Location2157 Main StreetBuffalo, NY 14214 · Erie County
Emergency services Birthing friendly

Kenmore Mercy Hospital

Acute Care Hospitals · Kenmore, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330102
Location2950 Elmwood AvenueKenmore, NY 14217 · Erie County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14217 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. BREANNE FINUCANE JEFFREY RPA-C
Physician Assistant (Surgical)
2950 ELMWOOD AVE
KENMORE, NY 14217
Erie County (716) 262-4607
ROBERT E BAKER III PA
Physician Assistant
2950 ELMWOOD AVE
KENMORE, NY 14217
Erie County (716) 447-6100
VICTORIA PAULSEN
Nurse Anesthetist, Certified Registered
2950 ELMWOOD AVE
KENMORE, NY 14217
Erie County (716) 323-6570
NIKHIL PATEL PHYSICIAN PLLC
Radiology (Vascular & Interventional Radiology)
2950 ELMWOOD AVE
BUFFALO, NY 14217
Erie County (716) 447-6100
DR. SARA DITURSI PHARMD
Pharmacist
2950 ELMWOOD AVE
BUFFALO, NY 14217
Erie County (716) 447-6000
KENMORE MERCY HOSPITAL
Internal Medicine (Pulmonary Disease)
2950 ELMWOOD AVE
KENMORE, NY 14217
Erie County (716) 447-6100
DR. JAMES MICHAEL BARTLETT PHARMD
Pharmacist
2950 ELMWOOD AVE
KENMORE, NY 14217
Erie County (716) 713-2722
KENMORE MERCY HOSPITAL
General Acute Care Hospital
2950 ELMWOOD AVE
KENMORE, NY 14217
Erie County (716) 447-6002

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marissa Krzyzan's NPI number?

The NPI number for Marissa Krzyzan is 1205598521. It was assigned to this individual provider in the NPPES registry on October 13, 2021.

Where is Marissa Krzyzan located?

Marissa Krzyzan practices at 2950 Elmwood Ave, Buffalo, NY 14217. The listed phone number is (716) 447-6100.

What is Marissa Krzyzan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marissa Krzyzan enrolled in Medicare?

Yes. Marissa Krzyzan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Marissa Krzyzan affiliated with any hospitals?

According to CMS data, Marissa Krzyzan is affiliated with Sisters Of Charity Hospital and Kenmore Mercy Hospital.

When was this NPI record last updated?

The NPPES record for Marissa Krzyzan was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.