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SEAN GUINNANE PMHNP
NPI 1346997137
Nurse Practitioner - Psychiatric/Mental Health in Buffalo, NY

Active since March 02, 2022PECOS EnrolledAccepts Medicare Assignment
1050 NIAGARA ST, BUFFALO, NY 14213(716) 856-2587(716) 856-2608 Get Directions Write a Review

NPPES record last updated: June 17, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 26, 2022, Mar 2, 2022 (2 updates tracked since 2022).

About Sean Guinnane Pmhnp NPPES

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

SEAN GUINNANE PMHNP (NPI 1346997137) is an individual psychiatric/mental health provider in Buffalo, New York, licensed in New York (403981) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Rockville Centre, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1346997137
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameSEAN GUINNANECredential: PMHNP
Location Address1050 NIAGARA STBuffalo, NY 14213-2001
Mailing Address1050 Niagara StBuffalo, NY 14213-2001 · (716) 856-2587 · Fax (716) 856-2608
Phone(716) 856-2587
Fax(716) 856-2608
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 2, 2022
Last NPPES UpdateJune 17, 20222 updates tracked since enumeration
NPPES CertifiedJune 17, 2022
✔ NPI 1346997137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NY · 403981
1050 NIAGARA ST, Buffalo, NY 14213
Open in Google Maps ↗

Secondary Practice Location 1

Location 1100 N Village Ave Ste 27Rockville Centre, NY 11570-3712 · Phone (929) 266-7360

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sean Guinnane Pmhnp 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 ID1052798170
PECOS Enrollment IDI20220511001386
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.

Medicare Billing Reassignment

Medicare enrollment records show Sean Guinnane reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Erie County South East Corp V
7.9 mi
Community/Behavioral Health
326 ORCHARD PARK RD
West Seneca, NY 14224
  • Reassigned Medicare billing, New York enrollment
  • 59 clinicians in this Medicare group
NPI 1487601837 (716) 662-6638

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14213 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.

ZOE SPYRALATOS
Nurse Practitioner (Psychiatric/Mental Health)
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 884-0700
DR. ALYSSA CHRISTINE HAMEL DNP, PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 880-1250
JULIA FAULISE
Counselor
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 856-2587
RUSSL HAMID MAHMOUD
Case Manager/Care Coordinator
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 710-4393
JOHN MARK PALCZEWSKI MSW
Social Worker
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 884-0700
MR. ENRICO GUINGONA FRANCO
Case Manager/Care Coordinator
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 884-0888
QUINDERA ANN MCCLAIN
Counselor
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 884-0700
LINDSAY LOUISE BORTZ LMSW
Counselor
1050 NIAGARA ST
BUFFALO, NY 14213
Erie County (716) 710-4393

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 Sean Guinnane's NPI number?

The NPI number for Sean Guinnane is 1346997137. It was assigned to this individual provider in the NPPES registry on March 2, 2022.

Where is Sean Guinnane located?

Sean Guinnane practices at 1050 Niagara St, Buffalo, NY 14213. The listed phone number is (716) 856-2587.

What is Sean Guinnane's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Sean Guinnane enrolled in Medicare?

Yes. Sean Guinnane 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.

Which organization bills Medicare for Sean Guinnane's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Guinnane reassigns Medicare benefits to Erie County South East Corp V (West Seneca, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sean Guinnane's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sean Guinnane was last updated on June 17, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.