Doctor profile · Federal record
Dr. Liam O'Sullivan, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Wenatchee, WA
- NPI 1639431133
- Accepts Medicare
- 11 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1201 S Miller St
Wenatchee, WA 988013201
(509) 663-8711 - Mailing address
-
820 N Chelan Ave
Wenatchee, WA 988012028
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- November 3, 2015
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Washington #MD60546517 · Arizona #R73282
- Medicaid
- WA #1639431133
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639431133. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
632
Distinct HCPCS
5
Medicare allowed
$81,354
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 244 | 238 | $120 | |
99285 |
Emergency department visit with high level of medical decision making | 236 | 230 | $172 | |
93042 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 89 | 88 | $7 | |
99291 |
Critical care, first 30-74 minutes | 47 | 46 | $208 | |
99283 |
Emergency department visit with low level of medical decision making | 16 | 16 | $71 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 111. This provider delivers 5.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
126
Patients
125
Total drug cost
$774
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 27 | 27 | $246 |
| Cephalexin | Generic | 20 | 20 | $155 |
| Morphine Sulfate | Generic | 20 | 20 | $71 |
| Azithromycin | Generic | 17 | 17 | $66 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 16 | 15 | $169 |
| Prednisone | Generic | 14 | 14 | $38 |
| Hydromorphone Hcl | Generic | 12 | 12 | $29 |
Hospital affiliations
Frequently asked questions
What is Dr. Liam O'Sullivan's medical specialty?
Dr. Liam O'Sullivan practices Emergency Medicine Physician in Wenatchee, WA.
Where does Dr. Liam O'Sullivan practice?
Dr. Liam O'Sullivan practices at 1201 S Miller St, Wenatchee, WA 988013201. Office phone: 5096638711.
What is Dr. Liam O'Sullivan's NPI?
Dr. Liam O'Sullivan's National Provider Identifier (NPI) is 1639431133, issued by NPPES.
Does Dr. Liam O'Sullivan accept Medicare assignment?
Yes. Dr. Liam O'Sullivan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Liam O'Sullivan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Electrocardiogram (ecg) 1 to 3 leads with review by physician only (HCPCS 93042). Source: CMS Medicare Physician & Other Practitioners file.