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Edit this profileAt a glance
- 797 S Fair Oaks Ave, Pasadena, CA 91105
About Derek Asimus
Listed in the NPI registry as a physician assistant, Derek Asimus practices in Pasadena, CA. According to Medicare claims data, Derek cared for 280 Medicare patients across 281 services. The services billed most often include new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count. NPI 1659738516 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (626) 797-2244
- Email not available
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Practice Locations
797 S FAIR OAKS AVE
Pasadena, CA 91105
Procedures Most Often Billed to Medicare
281 services · 280 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
15 | Less often than most peers in Physician Assistant |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
68 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
36 | Less often than most peers in Physician Assistant |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
31 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
29 | Less often than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
23 | As often as other peers in Physician Assistant |
| Urinalysis, manual test | Lab test | 81002 |
21 | As often as other peers in Physician Assistant |
| Blood test, basic group of blood chemicals (calcium, ionized) | Lab test | 80047 |
21 | As often as other peers in Physician Assistant |
| Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | Lab test | 87426 |
14 | Less often than most peers in Physician Assistant |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
12 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other physician assistants in Pasadena 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Derek Asimus's specialty?
Derek Asimus is a physician assistant in Pasadena, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Derek Asimus?
Derek Asimus is listed at 797 S Fair Oaks Ave, Pasadena, CA 91105. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Derek Asimus?
The number on file is (626) 797-2244. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Derek Asimus's NPI number?
Derek Asimus's National Provider Identifier is 1659738516. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Derek Asimus's education?
Derek Asimus attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How long has Derek Asimus been practicing?
Derek Asimus has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What is Derek Asimus known for?
According to Medicare billing data, Derek Asimus provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Derek Asimus confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Derek Asimus. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.