KATHLEEN BERNICE MAHONY F.N.P
NPI 1023124294
Nurse Practitioner - Family in Riverside, CA

Active since August 21, 2006PECOS Enrolled
78.65/100
CMS Quality Rating
491 E ALESSANDRO BLVD, #9803, RIVERSIDE, CA 92508(951) 780-1835(951) 780-2936 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 14, 2026, Sep 3, 2022, Nov 10, 2017 (3 updates tracked since 2017).

About Kathleen Bernice Mahony F.n.p NPPES

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

KATHLEEN BERNICE MAHONY F.N.P (NPI 1023124294) is an individual family provider in Riverside, California, licensed in California (11410) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Artesia, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1023124294
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATHLEEN BERNICE MAHONYCredential: F.N.P
Location Address491 E ALESSANDRO BLVD, #9803Riverside, CA 92508-6071
Mailing Address491 E Alessandro BlvdRiverside, CA 92508-6071 · (951) 780-1835 · Fax (951) 780-2936
Fax(951) 780-2936
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateAugust 21, 2006
Last NPPES UpdateAugust 14, 20263 updates tracked since enumeration
NPPES CertifiedAugust 14, 2026
✔ NPI 1023124294 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 CA · 11410
Also ListedRegistered NurseTaxonomy 163W00000X · License RN300198 (CA)
491 E ALESSANDRO BLVD, Riverside, CA 92508

Secondary Practice Location 1

Location 111618 South St Ste 214Artesia, CA 90701-6618 · Phone (951) 217-8755 · Fax (840) 237-2727

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathleen Bernice Mahony F.n.p is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6901848563
PECOS Enrollment IDI20050524001430
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

4

Medicare enrollment records show Kathleen Mahony reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nurse Practitioner
225 W HOSPITALITY LN STE 207
San Bernardino, CA 92408
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
Nurse Practitioner
14330 CULVER DR
Irvine, CA 92604
  • Reassigned Medicare billing, California enrollment
  • 212 clinicians in this Medicare group
Family
14330 CULVER DR
Irvine, CA 92604
  • Reassigned Medicare billing, California enrollment
  • 71 clinicians in this Medicare group
Family
11618 SOUTH ST STE 214
Artesia, CA 90701
  • Reassigned Medicare billing, California enrollment
  • 8 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.

Areas of Expertise CMS Part B claims

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.

Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349
An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.
32 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92508 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

78.65/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.95
Improvement Activities40
Cost89.44

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.

Pharmacy
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Nurse Practitioner (Family)
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Pharmacist
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Nurse Practitioner (Family)
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Nurse Practitioner (Family)
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Nurse Practitioner (Family)
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Nurse Practitioner (Family)
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508
Nurse Practitioner (Family)
491 E ALESSANDRO BLVD
RIVERSIDE, CA 92508

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 Mahony's NPI number?

The NPI number for Kathleen Mahony is 1023124294. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Kathleen Mahony located?

Kathleen Mahony practices at 491 E Alessandro Blvd #9803, Riverside, CA 92508. The listed phone number is (951) 780-1835.

What is Kathleen Mahony's specialty?

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

Is Kathleen Mahony enrolled in Medicare?

Yes. Kathleen Mahony is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kathleen Mahony's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Mahony reassigns Medicare benefits to 4 organizations: Goldencrest Primary Care (San Bernardino, CA), Minuteclinic Diagnostic Medical Group Of Orange County Inc (Irvine, CA), Minuteclinic Primary Care California (Irvine, CA) and Adoracion Reyes MD A Professional Medical Corporation (Artesia, CA). 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 Mahony'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 Mahony was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.