Doctor profile · Federal record
Dr. William Sullivan, D.O.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Frankfort, IL
- NPI 1902911027
- Accepts Medicare
- 34 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
21200 S la Grange RD # 365
Frankfort, IL 604232003
(877) 778-5449
fax (877) 778-5449
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 14, 2025
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Illinois #036088666 · Indiana #02001489A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902911027. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
330
Distinct HCPCS
4
Medicare allowed
$50,303
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 124 | 122 | $175 | |
99284 |
Emergency department visit with moderate level of medical decision making | 110 | 103 | $119 | |
99291 |
Critical care, first 30-74 minutes | 62 | 60 | $210 | |
99283 |
Emergency department visit with low level of medical decision making | 34 | 32 | $72 |
In context: peer comparison
Among 1 peers in Frankfort Emergency Medicine Physician, average services per provider: 82. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$106
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $105.66 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
26
Patients
14
Total drug cost
$101
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 15 | 14 | $47 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 11 | 0 | $54 |
Frequently asked questions
What is Dr. William Sullivan's medical specialty?
Dr. William Sullivan practices Emergency Medicine Physician in Frankfort, IL.
Where does Dr. William Sullivan practice?
Dr. William Sullivan practices at 21200 S la Grange RD # 365, Frankfort, IL 604232003. Office phone: 8777785449.
What is Dr. William Sullivan's NPI?
Dr. William Sullivan's National Provider Identifier (NPI) is 1902911027, issued by NPPES.
Does Dr. William Sullivan accept Medicare assignment?
Yes. Dr. William Sullivan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Sullivan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.