KARI LYNN ST HUBERT PA-C
NPI 1891837902
Physician Assistant in Phoenix, AZ

Active since February 13, 2007PECOS EnrolledAccepts Medicare Assignment
82.49/100
CMS Quality Rating
18444 N 25TH AVE STE 210, PHOENIX, AZ 85023(866) 974-2673(866) 939-2673 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 11, 2025, Oct 11, 2023, Feb 6, 2023 and 2 more (5 updates tracked since 2016).

About Kari Lynn St Hubert Pa-c NPPES

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

KARI LYNN ST HUBERT PA-C (NPI 1891837902) is an individual physician assistant in Phoenix, Arizona, licensed in Arizona (8383) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1891837902
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKARI LYNN ST HUBERTCredential: PA-C
Location Address18444 N 25TH AVE STE 210Phoenix, AZ 85023-1264
Mailing Address18444 N 25th Ave Ste 310Phoenix, AZ 85023-1266 · (866) 974-2673 · Fax (866) 939-2673
Fax(866) 939-2673
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateFebruary 13, 2007
Last NPPES UpdateAugust 11, 20255 updates tracked since enumeration
NPPES CertifiedAugust 11, 2025
NPI 1891837902 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses Licensed in AZ · 8383 Licensed in IL · 085005785
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
18444 N 25TH AVE STE 210, Phoenix, AZ 85023

Other Names 1

Former Name (1)Kari Lynn Chagnon Pa-c

Other Identifiers 1

Medicaid095702AZ

Accepted Insurance

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

Kari Lynn St Hubert Pa-c 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 ID9335214774
PECOS Enrollment IDI20230301000229
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 7

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
153 services19 patients
X-ray of foot, minimum of 3 views 73630
An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.
41 services30 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
39 services36 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
30 services29 patients
X-ray of ankle, minimum of 3 views 73610
An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.
19 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
18 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85023 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
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.

82.49/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.09
Promoting Interoperability100
Improvement Activities40
Cost68.54

Reported Quality Measures

Provide Patients Electronic Access to Their Health Information
79%359 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

Physician Assistant
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Physical Medicine & Rehabilitation
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Physician Assistant
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Nurse Practitioner (Family)
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Psychologist (Addiction (Substance Use Disorder))
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Psychiatry & Neurology (Neurology)
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Orthopaedic Surgery
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023
Physician Assistant (Surgical)
18444 N 25TH AVE STE 210
PHOENIX, AZ 85023

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 Kari St Hubert's NPI number?

The NPI number for Kari St Hubert is 1891837902. It was assigned to this individual provider in the NPPES registry on February 13, 2007. The provider is also known as Kari Lynn Chagnon Pa-C.

Where is Kari St Hubert located?

Kari St Hubert practices at 18444 N 25th Ave Ste 210, Phoenix, AZ 85023. The listed phone number is (866) 974-2673.

What is Kari St Hubert's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Kari St Hubert enrolled in Medicare?

Yes. Kari St Hubert 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.

What insurance does Kari St Hubert accept?

Health plans from Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc., Oscar Health Plan, Inc. and UnitedHealthcare list Kari St Hubert 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 Kari St Hubert was last updated on August 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.