Doctor profile · Federal record
Dr. Olivia Castellanos
Family Nurse Practitioner (CMS: Nurse Practitioner) · Rockford, IL
- NPI 1821551599
- Accepts Medicare
- MIPS 57.6 / 100 · 2023
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2222 E State St Ste 209
Rockford, IL 611041572
(815) 988-8500
Credentials & registration
- NPI registered
- April 2019 — 7 yrs on file
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Illinois #209019112
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821551599. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
346
Distinct HCPCS
4
Medicare allowed
$27,211
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 236 | 155 | $67 | |
90792 |
Psychiatric diagnostic evaluation with medical services | 52 | 51 | $151 | |
99307 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 32 | 30 | $35 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 26 | 22 | $95 |
In context: peer comparison
Among 61 peers in Rockford Family Nurse Practitioner, average services per provider: 120. This provider delivers 2.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
132
Patients
0
Total drug cost
$2,094
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Quetiapine Fumarate | Generic | 41 | 0 | $398 |
| Trazodone Hcl | Generic | 28 | 0 | $263 |
| Clozapine | Generic | 26 | 0 | $778 |
| Haloperidol | Generic | 13 | 0 | $241 |
| Divalproex Sodium | Generic | 12 | 0 | $294 |
| Escitalopram Oxalate | Generic | 12 | 0 | $120 |
Frequently asked questions
What is Dr. Olivia Castellanos's medical specialty?
Dr. Olivia Castellanos practices Family Nurse Practitioner in Rockford, IL.
Where does Dr. Olivia Castellanos practice?
Dr. Olivia Castellanos practices at 2222 E State St Ste 209, Rockford, IL 611041572. Office phone: 8159888500.
What is Dr. Olivia Castellanos's NPI?
Dr. Olivia Castellanos's National Provider Identifier (NPI) is 1821551599, issued by NPPES.
Does Dr. Olivia Castellanos accept Medicare assignment?
Yes. Dr. Olivia Castellanos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Olivia Castellanos commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Psychiatric diagnostic evaluation with medical services (HCPCS 90792); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99307). Source: CMS Medicare Physician & Other Practitioners file.