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Edit this profileAt a glance
- 21840 Normandie Ave, Torrance, CA 90502
About Riza Nielsen
Riza G. Nielsen, NP is a nurse practitioner based in Torrance, CA. According to Medicare claims data, Riza cared for 127 Medicare patients across 199 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, and x-ray of foot, minimum of 3 views. The provider's National Provider Identifier (NPI) is 1174956064.
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
- (310) 222-5026
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
21840 NORMANDIE AVE
Torrance, CA 90502
Procedures Most Often Billed to Medicare
199 services · 127 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
16 | Less often than most peers in Nurse Practitioner |
| X-ray of foot, minimum of 3 views | Imaging | 73630 |
33 | More often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
85 | More often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
45 | More often than most peers in Nurse Practitioner |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
20 | As often as other peers in Nurse Practitioner |
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.
Related specialists at this location 3
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.
Other nurse practitioners in Torrance 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Riza G. Nielsen specialize in?
Riza G. Nielsen is a nurse practitioner in Torrance, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Riza G. Nielsen located?
Riza G. Nielsen is listed at 21840 Normandie Ave, Torrance, CA 90502. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Riza G. Nielsen's phone number?
The number on file is (310) 222-5026. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Riza G. Nielsen's NPI number?
Riza G. Nielsen's National Provider Identifier is 1174956064. 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
Where did Riza G. Nielsen train?
Riza G. Nielsen attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How long has Riza G. Nielsen been practicing?
Riza G. Nielsen has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Riza G. Nielsen do most often?
According to Medicare billing data, Riza G. Nielsen performs procedures including aspiration and/or injection of fluid from large joint; reads or performs imaging such as x-ray of foot, minimum of 3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Riza G. Nielsen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Riza G. Nielsen. If this is you, claiming it is free.
Guide.md
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