DEREK ASIMUS
NPI 1659738516
Physician Assistant in Pasadena, CA

Active since January 24, 2016PECOS EnrolledAccepts Medicare Assignment
797 S FAIR OAKS AVE, PASADENA, CA 91105(626) 797-2244 Get Directions Write a Review

NPPES record last updated: June 20, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 20, 2023, Jan 24, 2016 (2 updates tracked since 2016).

About Derek Asimus NPPES

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

DEREK ASIMUS (NPI 1659738516) is an individual physician assistant in Pasadena, California, licensed in California (53155) and active in the NPI registry since January 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1659738516
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameDEREK ASIMUS
Location Address797 S FAIR OAKS AVEPasadena, CA 91105-2617
Mailing Address616 W Roses RdSan Gabriel, CA 91775-2231
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJanuary 24, 2016
Last NPPES UpdateJune 20, 20232 updates tracked since enumeration
NPPES CertifiedJune 20, 2023
NPI 1659738516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in CA · 53155
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.
797 S FAIR OAKS AVE, Pasadena, CA 91105

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

Derek Asimus 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 ID9537419221
PECOS Enrollment IDI20180829003784
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 11

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
68 services68 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.
36 services35 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
31 services31 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.
29 services29 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.
23 services23 patients
Blood test, basic group of blood chemicals (calcium, ionized) 80047
A basic group of blood chemicals test, including calcium and ionized, is a simple procedure where a small amount of blood is drawn from your arm. This test helps assess your body's overall health and detect potential disorders like kidney disease or bone disease.
21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91105 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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 16

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

Hospitalist
797 S FAIR OAKS AVE
PASADENA, CA 91105
Physician Assistant
797 S FAIR OAKS AVE
PASADENA, CA 91105
Family Medicine
797 S FAIR OAKS AVE
PASADENA, CA 91105
Family Medicine
797 S FAIR OAKS AVE
PASADENA, CA 91105
Internal Medicine
797 S FAIR OAKS AVE
PASADENA, CA 91105
Clinic/Center (Ambulatory Surgical)
797 S FAIR OAKS AVE
PASADENA, CA 91105
Pharmacist
797 S FAIR OAKS AVE
PASADENA, CA 91105
Physician Assistant (Medical)
797 S FAIR OAKS AVE
PASADENA, CA 91105

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 Derek Asimus's NPI number?

The NPI number for Derek Asimus is 1659738516. It was assigned to this individual provider in the NPPES registry on January 24, 2016.

Where is Derek Asimus located?

Derek Asimus practices at 797 S Fair Oaks Ave, Pasadena, CA 91105. The listed phone number is (626) 797-2244.

What is Derek Asimus's specialty?

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

Is Derek Asimus enrolled in Medicare?

Yes. Derek Asimus 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.

When was this NPI record last updated?

The NPPES record for Derek Asimus was last updated on June 20, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.