Doctor profile · Federal record
Dr. RYAN CALLAHAN
Physician Assistant · BILLINGS, MT
- NPI 1871201855
- Accepts Medicare
- 4 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
801 N 29TH ST
BILLINGS, MT 591010905
(701) 360-5239 - Mailing address
-
PO BOX 35100
BILLINGS, MT 591075100
Credentials & registration
- NPI registered
- November 2022 — 4 yrs on file
- Profile last updated
- March 22, 2023
- Year of graduation
- 2022 — 4 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1871201855. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
177
Distinct HCPCS
4
Medicare allowed
$17,115
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 76 | 73 | $120 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 58 | 57 | $82 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 23 | $55 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $112 |
In context: peer comparison
Among 47 peers in this city , average services per provider: 109. This provider delivers 1.6× the peer median.Open Payments
Industry payments received
All-time total
$104
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, Inc. | 1 | $103.85 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
24
Patients
0
Total drug cost
$336
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 13 | 0 | $294 |
| Cyclobenzaprine Hcl | Generic | 11 | 0 | $42 |