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Edit this profileAt a glance
- 801 S Washington St, Naperville, IL 60540
About Mary Lyons
Listed in the NPI registry as a nurse practitioner, Mary Lyons practices in Naperville, IL. Mary graduated from Indiana University School of Medicine in 1993. According to Medicare claims data, Mary cared for 205 Medicare patients across 231 services. The services billed most often include advance care planning, first 30 minutes, initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, and initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes. NPI 1174006290 identifies this record in the national registry.
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
- (630) 527-3000
- Email not available
Practice Locations
801 S WASHINGTON ST
Naperville, IL 60540
Procedures Most Often Billed to Medicare
231 services · 205 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Advance care planning, first 30 minutes | Office visit | 99497 |
61 | More often than most peers in Nurse Practitioner |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
49 | More often than most 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 |
48 | More 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 |
33 | As often as other peers in Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
24 | Less often than most peers in Nurse Practitioner |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
16 | 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 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 Naperville 6
Same specialty, same city.
Trained at Indiana University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Indiana University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Mary Lyons's specialty?
Mary Lyons is a nurse practitioner in Naperville, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Mary Lyons?
Mary Lyons is listed at 801 S Washington St, Naperville, IL 60540. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mary Lyons?
The number on file is (630) 527-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mary Lyons's NPI number?
Mary Lyons's National Provider Identifier is 1174006290. 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 Mary Lyons's education?
Mary Lyons attended Indiana University School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Mary Lyons been practicing?
Mary Lyons has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What is Mary Lyons known for?
According to Medicare billing data, Mary Lyons 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 Mary Lyons confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mary Lyons. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.