Provider Profile
Catherine Gianan, NP
Unclaimed ProfileAbout Catherine Gianan
Listed in the NPI registry as a nurse practitioner, Catherine Gianan, NP practices in Romeoville, IL. Catherine is also listed as specializing in nurse practitioner — family. According to Medicare claims data, Catherine cared for 199 Medicare patients across 579 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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (815) 942-6323
- Email not available
Practice Locations
1239 WINDHAM PKWY
Romeoville, IL 60446
Procedures Most Often Billed to Medicare
579 services · 199 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
199 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
380 |
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 4
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 Romeoville 6
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 2005 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Gianan specialize in?
Dr. Gianan is a nurse practitioner in Romeoville, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NURSE PRACTITIONER”.
NPI registry
Where is Dr. Gianan located?
Dr. Gianan is listed at 1239 WINDHAM PKWY, Romeoville, IL 60446. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gianan's phone number?
The number on file is (815) 942-6323. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Gianan's NPI number?
Dr. Gianan's National Provider Identifier is 1174616320. 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. Gianan go to medical school?
Dr. Gianan attended Other, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Gianan been practicing?
Dr. Gianan has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Gianan do most often?
According to Medicare billing data, Dr. Gianan provides treatments such as psychotherapy with evaluation and management visit, 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Gianan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gianan. 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.