Physician Profile
Unclaimed ProfileAbout MASAK
Cornelia B Masak, RN, APNP is a nurse practitioner practicing in Appleton, WI. According to Medicare claims data, Cornelia cared for 55 Medicare patients across 56 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (920) 749-4000
- Email not available
Practice Locations
1818 N MEADE ST
Appleton, WI 54911
Procedures Most Often Billed to Medicare
56 services · 55 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
41 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
15 |
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 5
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 — 22 related providers in 3 groups
Other nurse practitioners in Appleton 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Masak specialize in?
Dr. Masak is a nurse practitioner in Appleton, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NURSE PRACTITIONER”.
NPI registry
Where is Dr. Masak located?
Dr. Masak is listed at 1818 N MEADE ST, Appleton, WI 54911. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Masak's phone number?
The number on file is (920) 749-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Masak's NPI number?
Dr. Masak's National Provider Identifier is 1740319516. 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 Dr. Masak go to medical school?
Dr. Masak attended Other, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Masak been practicing?
Dr. Masak has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Masak do most often?
According to Medicare billing data, Dr. Masak the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Masak confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Masak. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.