Catherine Gianan, NP
Family Nurse Practitioner · Romeoville, IL
Catherine Gianan, NP is a family nurse practitioner with a practice address in Romeoville, Illinois, and NPI 1174616320, issued on Oct 2, 2006. Check the license (Illinois 209006128, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Gianan
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209006128 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1239 Windham Pkwy, Romeoville, IL 60446
- Phone
- (815) 942-6323
- Enumerated
- Oct 2, 2006
- Record last updated
- May 20, 2024
- Fax
- (815) 941-0308
- Medicare enrollment
- Enrolled (PECOS I20061221000407); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 1239 Windham Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Gianan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209006128Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,852 Medicare Part D claims for 170 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Clonazepam248 claims
- Alprazolam240 claims
- Lorazepam157 claims
- Escitalopram Oxalate139 claims
- Sertraline Hcl117 claims
- Trazodone Hcl113 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,188.54
77 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Gianan Health, PLLCBolingbrook, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Gianan among 7,639 family nurse practitioner records in Illinois
Catherine Gianan, NP is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 95% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2018 among the 4,778 with a school on file
- Record last updated2024 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 family nurse practitioner records list a practice address in Romeoville
They are 18 of the 320 NPPES records with a practice address in Romeoville, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Romeoville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Dely Benjamin, FNP-CRomeoville, IL 604461801676630
- Carly BochulaRomeoville, IL 604461487306320
- Lisa Chapman Conlin, MSN FNP-BCRomeoville, IL 604461962019216
- Erica Cirrintano, FNP-BCRomeoville, IL 604461639845316
- Lenita Hinkle, APNRomeoville, IL 604461477948636
- Lakeshia Keys-Nesbit, APNRomeoville, IL 604461376908244
- Catherine Kiley, FNPRomeoville, IL 604461023512274
- Mary Kluever, FNP-BCRomeoville, IL 604461598154247
Common questions
What is Catherine Gianan, NP's NPI number?
Catherine Gianan, NP's National Provider Identifier (NPI) is 1174616320, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Gianan, NP located?
The NPPES record lists a practice address at 1239 Windham Pkwy, Romeoville, IL, 60446. Phone: (815) 942-6323. Providers update this record themselves, so call before visiting.
How can I verify Catherine Gianan, NP's license?
NPPES lists Illinois license number 209006128, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Gianan, NP prescribe under Medicare Part D?
In 2024, Catherine Gianan, NP had 2,852 Medicare Part D claims for 170 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.