Doctor profile · Federal record
Dr. Jill Coster, DO
Family Medicine Physician (CMS: Family Practice) · O Fallon, IL
- NPI 1205462942
- Accepts Medicare
- 6 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3 Saint Elizabeth Blvd Ste 4000
O Fallon, IL 622691284
(618) 256-9355
Credentials & registration
- NPI registered
- March 2020 — 6 yrs on file
- Profile last updated
- October 12, 2023
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Illinois #036.164563
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205462942. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
29
Distinct HCPCS
2
Medicare allowed
$3,046
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99238 |
Hospital discharge day management, 30 minutes or less | 15 | 14 | $81 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 14 | 13 | $131 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 68. This provider delivers 0.4× the peer median.Frequently asked questions
What is Dr. Jill Coster's medical specialty?
Dr. Jill Coster practices Family Medicine Physician in O Fallon, IL.
Where does Dr. Jill Coster practice?
Dr. Jill Coster practices at 3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL 622691284. Office phone: 6182569355.
What is Dr. Jill Coster's NPI?
Dr. Jill Coster's National Provider Identifier (NPI) is 1205462942, issued by NPPES.
Does Dr. Jill Coster accept Medicare assignment?
Yes. Dr. Jill Coster accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jill Coster commonly perform?
Top Medicare-reported procedures in 2023: Hospital discharge day management (HCPCS 99238); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.