MARY KATE ZERBY OTR
NPI 1558910356
Occupational Therapist in Sayre, PA

Active since September 05, 2019
82.9/100
CMS Quality Rating

NPPES record last updated: February 23, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 23, 2023, Mar 19, 2021, Sep 5, 2019 (3 updates tracked since 2019).

About Mary Kate Zerby Otr NPPES

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

MARY KATE ZERBY OTR (NPI 1558910356) is an individual occupational therapist in Sayre, Pennsylvania, licensed in Pennsylvania (OC015116) and active in the NPI registry since September 2019.

NPPES Registry Identity

NPI1558910356
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameMARY KATE ZERBYCredential: OTR
Location Address1 GUTHRIE SQSayre, PA 18840-1625
Mailing Address1 Guthrie SqSayre, PA 18840-1625 · (570) 888-5858
Sole ProprietorNo
Enumeration DateSeptember 5, 2019
Last NPPES UpdateFebruary 23, 20233 updates tracked since enumeration
NPPES CertifiedFebruary 23, 2023
✔ NPI 1558910356 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License✔ Licensed in PA · OC015116
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
1 GUTHRIE SQ, Sayre, PA 18840

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Kate Zerby Otr is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Family Medicine
412 S MAIN ST
Athens, PA 18810
  • Reassigned Medicare billing, Pennsylvania and New York enrollments
  • Medicare enrollment name: Guthrie Medical Group PC
  • Also billed through NPI 1245246644 (New York)
  • 830 clinicians in this Medicare group

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

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.9/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.09
Promoting Interoperability100
Improvement Activities40
Cost65.94

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.

Psychologist
1 GUTHRIE SQ
SAYRE, PA 18840
Emergency Medicine
1 GUTHRIE SQ
SAYRE, PA 18840
Occupational Therapist
1 GUTHRIE SQ
SAYRE, PA 18840
Internal Medicine
1 GUTHRIE SQ
SAYRE, PA 18840
Student in an Organized Health Care Education/Training Program
1 GUTHRIE SQ
SAYRE, PA 18840
Radiology (Diagnostic Radiology)
1 GUTHRIE SQ
SAYRE, PA 18840
Hospitalist
1 GUTHRIE SQ
SAYRE, PA 18840
Physician Assistant
1 GUTHRIE SQ
SAYRE, PA 18840

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 Mary Zerby's NPI number?

The NPI number for Mary Zerby is 1558910356. It was assigned to this individual provider in the NPPES registry on September 5, 2019.

Where is Mary Zerby located?

Mary Zerby practices at 1 Guthrie Sq, Sayre, PA 18840. The listed phone number is (570) 888-5858.

What is Mary Zerby's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Mary Zerby enrolled in Medicare?

Yes. Mary Zerby is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Zerby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Zerby reassigns Medicare benefits to Guthrie Medical Group, P.C. (Athens, PA). 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 Mary Zerby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Zerby accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Mary Zerby as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Zerby was last updated on February 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.