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 Billings Physician Assistant, 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 |
Frequently asked questions
What is Dr. Ryan Callahan's medical specialty?
Dr. Ryan Callahan practices Physician Assistant in Billings, MT.
Where does Dr. Ryan Callahan practice?
Dr. Ryan Callahan practices at 801 N 29Th St, Billings, MT 591010905. Office phone: 7013605239.
What is Dr. Ryan Callahan's NPI?
Dr. Ryan Callahan's National Provider Identifier (NPI) is 1871201855, issued by NPPES.
Does Dr. Ryan Callahan accept Medicare assignment?
Yes. Dr. Ryan Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryan Callahan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.