Provider Profile
Cassie Wiersema
Unclaimed ProfileAbout Cassie Wiersema
Cassie Wiersema is a nurse practitioner practicing in Sterling, IL. Medicare claims data shows Cassie provided 427 services to 237 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (815) 625-4790
- Email not available
Practice Locations
101 E MILLER RD
Sterling, IL 61081
Procedures Most Often Billed to Medicare
427 services · 237 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 2 views | Imaging | 71046 |
19 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
284 | More often than most peers in Nurse Practitioner |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
96 | As often as other 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 |
28 | Less often than most 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.
Other nurse practitioners at this location 8
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 — 27 related providers in 4 groups
Other nurse practitioners in Sterling 3
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 2 views 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Cassie Wiersema's specialty?
Cassie Wiersema is a nurse practitioner in Sterling, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Cassie Wiersema?
Cassie Wiersema is listed at 101 E Miller Rd, Sterling, IL 61081. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Cassie Wiersema?
The number on file is (815) 625-4790. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Cassie Wiersema?
Cassie Wiersema's National Provider Identifier is 1194127977. 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 Cassie Wiersema's education?
Cassie Wiersema attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Cassie Wiersema have?
Cassie Wiersema has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What is Cassie Wiersema known for?
According to Medicare billing data, Cassie Wiersema performs imaging including x-ray of chest, 2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Cassie Wiersema's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Cassie Wiersema. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.