KATHLEEN MARY WILLIAMS NP
NPI 1962096693
Nurse Practitioner - Family in Geneseo, NY

Active since February 23, 2021PECOS EnrolledAccepts Medicare Assignment
98.21/100
CMS Quality Rating
114 COURT ST, GENESEO, NY 14454(585) 243-5990(585) 243-3256 Get Directions Write a Review

NPPES record last updated: July 22, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 22, 2023, Mar 11, 2022, Feb 23, 2021 (3 updates tracked since 2021).

About Kathleen Mary Williams Np NPPES

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

KATHLEEN MARY WILLIAMS NP (NPI 1962096693) is an individual family provider in Geneseo, New York, licensed in New York (F347024-01) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Rochester, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1962096693
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATHLEEN MARY WILLIAMSCredential: NP
Location Address114 COURT STGeneseo, NY 14454-1036
Mailing Address288 Wintergreen WayRochester, NY 14618-4838 · (585) 414-8587
Fax(585) 243-3256
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateFebruary 23, 2021
Last NPPES UpdateJuly 22, 20233 updates tracked since enumeration
NPPES CertifiedMarch 11, 2022
✔ NPI 1962096693 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 · F347024-01
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License 347024 (NY)
114 COURT ST, Geneseo, NY 14454

Other Names 1

Former Name (1)Kathleen Mary Oneill

Secondary Practice Location 1

Location 11815 South Clinton Ave, Bldg. 500 Suite 530Rochester, NY 14618 · Phone (585) 442-4310 · Fax (585) 442-6750

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

Kathleen Mary Williams Np 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 ID3375933112
PECOS Enrollment IDI20211209000883
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 Reassignments

5

Medicare enrollment records show Kathleen Williams reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Obstetrics & Gynecology
121 S MAIN ST
Warsaw, NY 14569
  • Reassigned Medicare billing, New York enrollment
  • 1,030 clinicians in this Medicare group
Internal Medicine
601 ELMWOOD AVE
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 302 clinicians in this Medicare group
Thoracic Surgery (Cardiothoracic Vascular Surgery)
601 ELMWOOD AVE
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 23 clinicians in this Medicare group
General Acute Care Hospital
601 ELMWOOD AVE, BOX 684
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 1,624 clinicians in this Medicare group
Dermatology
500 HELENDALE RD STE 100
Rochester, NY 14609
  • Reassigned Medicare billing, New York enrollment
  • 5 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14454 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.

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.

98.21/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.57
Promoting Interoperability100
Improvement Activities40
Cost95.57

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 Kathleen Williams's NPI number?

The NPI number for Kathleen Williams is 1962096693. It was assigned to this individual provider in the NPPES registry on February 23, 2021. The provider is also known as Kathleen Mary Oneill.

Where is Kathleen Williams located?

Kathleen Williams practices at 114 Court St, Geneseo, NY 14454. The listed phone number is (585) 243-5990.

What is Kathleen Williams's specialty?

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

Is Kathleen Williams enrolled in Medicare?

Yes. Kathleen Williams 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 organizations bill Medicare for Kathleen Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Williams reassigns Medicare benefits to 5 organizations: Western New York Medical Practice PC (Warsaw, NY), Internal Medicine Group (Rochester, NY), Thoracic Foregut Surgery Of The University Of Rochester (Rochester, NY), University Of Rochester (Rochester, NY) and Helendale Dermatology & Medical Spa, PLLC (Rochester, NY). Each 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 Kathleen Williams'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 Kathleen Williams was last updated on July 22, 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.