Doctor profile · Federal record
Dr. Philip Siefken, M.D.
Pediatrics Physician (CMS: Pediatric Medicine) · Internal Medicine Physician · Family Medicine Physician · Greenville, IL
- NPI 1689629107
- Accepts Medicare
- MIPS 87.8 / 100 · 2023
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1000 Red Ball Trl
Greenville, IL 622462781
(618) 664-1240
fax (618) 690-2189 - Mailing address
-
Po Box 372
Mattoon, IL 619380372
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- January 7, 2026
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 208000000X — NUCC code
- State license (1)
- Illinois #036088335
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689629107. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
90
Distinct HCPCS
3
Medicare allowed
$1,679
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
87804 |
Detection test by immunoassay with direct visual observation for influenza virus | 34 | 15 | $16 | |
87426 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 30 | 28 | $35 | |
81002 |
Urinalysis, manual test | 26 | 20 | $3 |
In context: peer comparison
Among 1 peers in Greenville Pediatrics Physician, average services per provider: 30. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,056
Patients
679
Total drug cost
$155,548
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 436 | 94 | $6,018 |
| Levothyroxine Sodium | Generic | 410 | 88 | $7,308 |
| Lisinopril | Generic | 290 | 67 | $2,753 |
| Metoprolol Succinate | Generic | 268 | 63 | $4,176 |
| Furosemide | Generic | 193 | 34 | $951 |
| Gabapentin | Generic | 179 | 37 | $2,882 |
| Eliquis (Apixaban) | Brand | 166 | 25 | $116,006 |
| Omeprazole | Generic | 164 | 36 | $2,318 |
| Metformin Hcl | Generic | 157 | 48 | $2,056 |
| Amlodipine Besylate | Generic | 156 | 38 | $1,799 |
Hospital affiliations
Frequently asked questions
What is Dr. Philip Siefken's medical specialty?
Dr. Philip Siefken practices Pediatrics Physician in Greenville, IL.
Where does Dr. Philip Siefken practice?
Dr. Philip Siefken practices at 1000 Red Ball Trl, Greenville, IL 622462781. Office phone: 6186641240.
What is Dr. Philip Siefken's NPI?
Dr. Philip Siefken's National Provider Identifier (NPI) is 1689629107, issued by NPPES.
Does Dr. Philip Siefken accept Medicare assignment?
Yes. Dr. Philip Siefken accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Philip Siefken commonly perform?
Top Medicare-reported procedures in 2023: Detection test by immunoassay with direct visual observation for influenza virus (HCPCS 87804); Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (HCPCS 87426); Urinalysis, manual test (HCPCS 81002). Source: CMS Medicare Physician & Other Practitioners file.