Provider Profile
Genna N. Tonstad, APNP
Unclaimed ProfileAbout Genna Tonstad
Genna N. Tonstad, APNP is a nurse practitioner based in Madison, WI. Medicare claims data shows Genna provided 493 services to 289 patients. The services billed most often include residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes, residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes, and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit.
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
- (888) 938-3838
- Email not available
Practice Locations
4781 HAYES RD STE 101
Madison, WI 53704
1360 Pabst Farms Circle Ste B
Oconomowoc, WI 53066
Procedures Most Often Billed to Medicare
493 services · 289 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
20 | Less often than most peers in Nurse Practitioner |
| Removal of impacted ear wax | Procedure | 69210 |
15 | Less often than most peers in Nurse Practitioner |
| Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99349 |
229 | More often than most peers in Nurse Practitioner |
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99348 |
158 | More often than most peers in Nurse Practitioner |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
28 | As often as other peers in Nurse Practitioner |
| Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99344 |
17 | As often as other peers in Nurse Practitioner |
| Advance care planning, first 30 minutes | Office visit | 99497 |
13 | Less 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 |
13 | 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 1
Same specialty, same street address — most likely the same department or group.
Other nurse practitioners in Madison 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2023 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of nasal passages using an endoscope 8
Providers in WI who bill this service to Medicare most often.
Common questions
What does Genna N. Tonstad specialize in?
Genna N. Tonstad is a nurse practitioner in Madison, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Genna N. Tonstad located?
Genna N. Tonstad is listed at 4781 Hayes Rd Ste 101, Madison, WI 53704. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Genna N. Tonstad's phone number?
The number on file is (888) 938-3838. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Genna N. Tonstad?
Genna N. Tonstad's National Provider Identifier is 1386421279. 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 Genna N. Tonstad train?
Genna N. Tonstad attended Other, graduating in 2023. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Genna N. Tonstad have?
Genna N. Tonstad has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.
CMS public data
What does Genna N. Tonstad do most often?
According to Medicare billing data, Genna N. Tonstad performs procedures including diagnostic exam of nasal passages using an endoscope and removal of impacted ear wax, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Genna N. Tonstad's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Genna N. Tonstad. 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.