Doctor profile · Federal record
Dr. Catherine Gianan, NP
Family Nurse Practitioner (CMS: Nurse Practitioner) · Romeoville, IL
- NPI 1174616320
- Accepts Medicare
- 21 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1239 Windham Pkwy
Romeoville, IL 604461608
(815) 942-6323
fax (815) 941-0308 - Mailing address
-
Po Box 713260
Chicago, IL 606771260
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- May 20, 2024
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Illinois #209006128
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174616320. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
788
Distinct HCPCS
3
Medicare allowed
$71,854
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 463 | 131 | $110 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 314 | 104 | $60 | |
90792 |
Psychiatric diagnostic evaluation with medical services | 11 | 11 | $170 |
In context: peer comparison
Among 1 peers in Romeoville Family Nurse Practitioner, average services per provider: 262. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$2,189
Transactions
75
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 8 | $352.00 | |
| Abbvie INC. | 14 | $345.04 | |
| Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) | 10 | $292.84 | |
| Tris Pharma INC | 8 | $263.37 | |
| Otsuka America Pharmaceutical, INC. | 12 | $235.29 | |
| Axsome Therapeutics, INC. | 4 | $165.51 | |
| Janssen Scientific Affairs, LLC | 1 | $117.27 | |
| Noven Therapeutics, LLC | 4 | $76.16 | |
| Alkermes, INC. | 3 | $59.12 | |
| Lundbeck LLC | 3 | $57.26 | |
| Indivior INC. | 2 | $53.77 | |
| Almatica Pharma LLC | 2 | $48.54 | |
| Corium, LLC | 2 | $47.89 | |
| Neuronetics, INC. | 1 | $21.23 | |
| Braeburn INC. | 1 | $18.79 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,930
Patients
359
Total drug cost
$39,401
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clonazepam | Generic | 289 | 39 | $2,630 |
| Alprazolam | Generic | 251 | 37 | $2,138 |
| Lorazepam | Generic | 183 | 32 | $2,560 |
| Escitalopram Oxalate | Generic | 151 | 33 | $2,822 |
| Sertraline Hcl | Generic | 131 | 30 | $1,620 |
| Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) | Brand | 125 | 17 | $3,369 |
| Bupropion Xl (Bupropion Hcl) | Brand | 112 | 26 | $4,213 |
| Trazodone Hcl | Generic | 109 | 29 | $2,737 |
| Quetiapine Fumarate | Generic | 104 | 28 | $2,407 |
| Fluoxetine Hcl | Generic | 102 | 21 | $3,621 |
Frequently asked questions
What is Dr. Catherine Gianan's medical specialty?
Dr. Catherine Gianan practices Family Nurse Practitioner in Romeoville, IL.
Where does Dr. Catherine Gianan practice?
Dr. Catherine Gianan practices at 1239 Windham Pkwy, Romeoville, IL 604461608. Office phone: 8159426323.
What is Dr. Catherine Gianan's NPI?
Dr. Catherine Gianan's National Provider Identifier (NPI) is 1174616320, issued by NPPES.
Does Dr. Catherine Gianan accept Medicare assignment?
Yes. Dr. Catherine Gianan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Gianan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Psychotherapy with evaluation and management visit (HCPCS 90833); Psychiatric diagnostic evaluation with medical services (HCPCS 90792). Source: CMS Medicare Physician & Other Practitioners file.