Provider Profile
Emma Koester, ARNP
Unclaimed ProfileAbout Emma Koester
Emma Koester, ARNP is a nurse practitioner based in Waterloo, IA. According to Medicare claims data, Emma cared for 101 Medicare patients across 2,921 services. The services billed most often include injection, methylprednisolone acetate, 1 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and aspiration and/or injection of fluid from large joint.
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
- (319) 833-5381
- Email not available
Practice Locations
1631 LOGAN AVE
Waterloo, IA 50703
Procedures Most Often Billed to Medicare
2,921 services · 101 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
32 | As often as other peers in Nurse Practitioner |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
2,840 | 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 |
34 | Less often than most 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 |
15 | 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 3
Same specialty, same street address — most likely the same department or group.
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 Waterloo 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 2024 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 IA who bill this service to Medicare most often.
Common questions
What is Emma Koester's specialty?
Emma Koester is a nurse practitioner in Waterloo, IA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Emma Koester?
Emma Koester is listed at 1631 Logan Ave, Waterloo, IA 50703. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Emma Koester?
The number on file is (319) 833-5381. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Emma Koester's NPI number?
Emma Koester's National Provider Identifier is 1487480778. 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 Emma Koester's education?
Emma Koester attended Other, graduating in 2024. This comes from the CMS National Downloadable File.
CMS public data
How long has Emma Koester been practicing?
Emma Koester has 2 years experience. Calculated from a graduation year of 2024, reported in the CMS National Downloadable File.
CMS public data
What is Emma Koester known for?
According to Medicare billing data, Emma Koester performs procedures including aspiration and/or injection of fluid from large joint, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Emma Koester confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Emma Koester. 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.