Doctor profile · Federal record
Dr. Steven Callahan, M.D.
Emergency Medicine Physician (CMS: Family Practice) · Newport Beach, CA
- NPI 1164485991
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 48 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1 Hoag Dr, Ecu Dept.
Newport Beach, CA 926634162
(949) 764-5689
fax (405) 751-3183 - Mailing address
-
Po Box 720300
Oklahoma City, OK 731720300
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- September 19, 2012
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #G41150
- Medicaid (2)
- CA #00G411500 · CA #OOG411500670
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164485991. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
695
Distinct HCPCS
4
Medicare allowed
$96,026
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 291 | 289 | $181 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 189 | 184 | $9 | |
99291 |
Critical care, first 30-74 minutes | 154 | 149 | $222 | |
99284 |
Emergency department visit with moderate level of medical decision making | 61 | 61 | $125 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 162. This provider delivers 4.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
42
Patients
31
Total drug cost
$144
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 16 | 16 | $54 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 15 | 15 | $55 |
| Ondansetron Hcl | Generic | 11 | 0 | $35 |
Hospital affiliations
Frequently asked questions
What is Dr. Steven Callahan's medical specialty?
Dr. Steven Callahan practices Emergency Medicine Physician in Newport Beach, CA.
Where does Dr. Steven Callahan practice?
Dr. Steven Callahan practices at 1 Hoag Dr, Newport Beach, CA 926634162. Office phone: 9497645689.
What is Dr. Steven Callahan's NPI?
Dr. Steven Callahan's National Provider Identifier (NPI) is 1164485991, issued by NPPES.
Does Dr. Steven Callahan accept Medicare assignment?
Yes. Dr. Steven Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Steven Callahan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.