Doctor profile · Federal record
Dr. Allyse Ortega, FNP-C, AGACNP, RN
Family Nurse Practitioner (CMS: Nurse Practitioner) · Emergency Registered Nurse · Acute Care Nurse Practitioner · O Fallon, MO
- NPI 1982149878
- Accepts Medicare
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
844 Waterbury Falls Dr Ste B
O Fallon, MO 633682208
(636) 385-5556
fax (636) 614-2093 - Additional location
-
17 Clarkson RD
Ellisville, MO 630112215
(636) 552-9079 - Additional location
-
27 the Boulevard Saint Louis
Richmond Heights, MO 631171118 - Additional location
-
9556 Manchester RD
Saint Louis, MO 631191313
(314) 373-5740
Show 1 more location
Credentials & registration
- NPI registered
- December 2016 — 10 yrs on file
- Profile last updated
- January 27, 2026
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State licenses (3)
- Missouri #2017001487 · Missouri #2010020396 · Missouri #2023000801
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982149878. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
154
Distinct HCPCS
8
Medicare allowed
$13,955
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
96401 |
Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | 39 | 13 | $61 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 12 | $76 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 17 | 17 | $94 | |
99285 |
Emergency department visit with high level of medical decision making | 16 | 16 | $149 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 15 | 15 | $107 | |
99284 |
Emergency department visit with moderate level of medical decision making | 15 | 15 | $102 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $140 | |
87635 |
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | 12 | 12 | $50 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 78. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$519
Transactions
13
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Eisai Inc. | 4 | $185.54 | |
| CSL Behring | 1 | $106.32 | |
| Janssen Biotech, Inc. | 1 | $91.52 | |
| ABBVIE INC. | 2 | $40.87 | |
| Ferring Pharmaceuticals Inc. | 1 | $21.50 | |
| Genentech USA, Inc. | 1 | $20.46 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $18.87 | |
| ADMA BioManufacturing LLC | 1 | $18.56 | |
| ARGENX US, INC. | 1 | $15.24 |
By nature of payment
Frequently asked questions
What is Dr. Allyse Ortega's medical specialty?
Dr. Allyse Ortega practices Family Nurse Practitioner in O Fallon, MO.
Where does Dr. Allyse Ortega practice?
Dr. Allyse Ortega practices at 844 Waterbury Falls Dr Ste B, O Fallon, MO 633682208. Office phone: 6363855556.
What is Dr. Allyse Ortega's NPI?
Dr. Allyse Ortega's National Provider Identifier (NPI) is 1982149878, issued by NPPES.
Does Dr. Allyse Ortega accept Medicare assignment?
Yes. Dr. Allyse Ortega accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allyse Ortega commonly perform?
Top Medicare-reported procedures in 2023: Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle (HCPCS 96401); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.