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Edit this profileAt a glance
- 1000 N Oak Ave, Marshfield, WI 54449
About Dr. Fellenz
Amy Fellenz, DNP is a nurse practitioner based in Marshfield, WI. According to Medicare claims data, Amy cared for 153 Medicare patients across 185 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 moderate level of decision making, if using time, 30 minutes or more, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes. The provider's National Provider Identifier (NPI) is 1619534690.
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
- (715) 207-8691
- Email not available
Practice Locations
1000 N OAK AVE
Marshfield, WI 54449
Procedures Most Often Billed to Medicare
185 services · 153 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Simple insertion of temporary bladder tube | Procedure | 51702 |
19 | Less 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 |
57 | 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 |
35 | Less often than most peers in Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
27 | Less 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 |
27 | As often as other peers in Nurse Practitioner |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
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.
Other nurse practitioners 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 — 29 related providers in 4 groups
Other nurse practitioners in Marshfield 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Simple insertion of temporary bladder tube 8
Providers in WI who bill this service to Medicare most often.
Common questions
What kind of doctor is Amy Fellenz?
Amy Fellenz is a nurse practitioner in Marshfield, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Amy Fellenz's address?
Amy Fellenz is listed at 1000 N Oak Ave, Marshfield, WI 54449. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Amy Fellenz?
The number on file is (715) 207-8691. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Amy Fellenz's NPI number?
Amy Fellenz's National Provider Identifier is 1619534690. 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 Amy Fellenz train?
Amy Fellenz attended Other, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Amy Fellenz been practicing?
Amy Fellenz has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What procedures does Amy Fellenz perform?
According to Medicare billing data, Amy Fellenz performs procedures including simple insertion of temporary bladder tube, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Amy Fellenz confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Amy Fellenz. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.