KHRISTINA CALDARELLI PA-C
NPI 1811622301
Physician Assistant in Simi Valley, CA

Active since July 19, 2022PECOS EnrolledAccepts Medicare Assignment
2525 ERRINGER RD, SIMI VALLEY, CA 93065(805) 527-1404(805) 527-5246 Get Directions Write a Review

NPPES record last updated: February 5, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Feb 5, 2026, Jan 20, 2026, Oct 14, 2022 and 1 more (4 updates tracked since 2022).

About Khristina Caldarelli Pa-c NPPES

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

KHRISTINA CALDARELLI PA-C (NPI 1811622301) is an individual physician assistant in Simi Valley, California and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Thousand Oaks, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1811622301
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKHRISTINA CALDARELLICredential: PA-C
Location Address2525 ERRINGER RDSimi Valley, CA 93065-2352
Mailing Address1203 Flynn Rd Unit 160Camarillo, CA 93012-6203 · (805) 804-4168 · Fax (805) 830-1177
Fax(805) 527-5246
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 19, 2022
Last NPPES UpdateFebruary 5, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 5, 2026
NPI 1811622301 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
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.

2525 ERRINGER RD, Simi Valley, CA 93065

Other Names 1

Former Name (1)Khristina Marjan Shad Pa-c

Secondary Practice Location 1

Location 1137 E Thousand Oaks BlvdThousand Oaks, CA 91360-5707 · Phone (805) 379-4574 · Fax (805) 379-4324

Other Identifiers 1

Other61776CA · State License

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

Khristina Caldarelli 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 ID9133595853
PECOS Enrollment IDI20221021000492
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 19

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg J7318
Hyaluronan or derivative, Durolane, is a treatment injected directly into the joint to relieve pain and improve mobility. It's often used for arthritis in the knee. The substance works by supplementing your body's natural joint fluid to help lubricate and cushion the joint.
9,720 services113 patients
Injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg J3304
Triamcinolone acetonide is a long-lasting, preservative-free steroid injection. It's delivered in tiny, slow-releasing particles (microspheres) to manage inflammation or related conditions. The dose given is 1 mg. It's generally safe with few side effects.
3,424 services57 patients
Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml A9579
This is an MRI procedure where a gadolinium-based contrast agent is injected into your body. The agent enhances the images, making it easier to detect abnormalities. It's safe and side effects are rare. It's administered per milliliter as needed.
550 services42 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.
502 services313 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
383 services200 patients
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702
This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.
309 services74 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93065 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
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$77.11 typical visit price
range $20.68 – $151.85
Typical copayment $19.27 (range $5.17 – $37.96)
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.

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physical Therapist
2525 ERRINGER RD
SIMI VALLEY, CA 93065
Radiology (Diagnostic Radiology)
2525 ERRINGER RD, SUITE A
SIMI VALLEY, CA 93065
Occupational Therapist (Hand)
2525 ERRINGER RD
SIMI VALLEY, CA 93065
Physician Assistant
2525 ERRINGER RD
SIMI VALLEY, CA 93065
Physician Assistant
2525 ERRINGER RD
SIMI VALLEY, CA 93065
Physical Therapist
2525 ERRINGER RD
SIMI VALLEY, CA 93065
Orthopaedic Surgery (Sports Medicine)
2525 ERRINGER RD
SIMI VALLEY, CA 93065
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
2525 ERRINGER RD
SIMI VALLEY, CA 93065

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811622301, enumerated as an "individual" on July 19, 2022.

The provider is located at 2525 ERRINGER RD SIMI VALLEY, CA 93065 and the phone number is (805) 527-1404.

Physician Assistant with taxonomy code 363A00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.