Doctor profile · Federal record
Dr. John McCahan, MD
Rheumatology Physician (CMS: Rheumatology) · Internal Medicine Physician · Bozeman, MT
- NPI 1144319922
- Accepts Medicare
- MIPS 80.8 / 100 · 2023
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
931 Highland Blvd Ste 3260
Bozeman, MT 597156907
(406) 414-5198 - Mailing address
-
915 Highland Blvd
Bozeman, MT 597156902
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- April 9, 2025
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Montana #12743
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144319922. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
631
Distinct HCPCS
6
Medicare allowed
$50,994
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 296 | 213 | $66 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 233 | 162 | $98 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $134 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 30 | 29 | $36 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 19 | 19 | $83 | |
20610 |
Aspiration and/or injection of fluid from large joint | 12 | 11 | $44 |
In context: peer comparison
Among 3 peers in Bozeman Rheumatology Physician, average services per provider: 91. This provider delivers 6.9× the peer median.Open Payments
Industry payments received
All-time total
$96
Transactions
4
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 4 | $96.10 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,738
Patients
413
Total drug cost
$477,491
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 422 | 103 | $18,751 |
| Hydroxychloroquine Sulfate | Generic | 308 | 73 | $14,899 |
| Prednisone | Generic | 291 | 95 | $2,495 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 115 | 21 | $2,589 |
| Alendronate Sodium | Generic | 103 | 32 | $1,087 |
| Tramadol Hcl | Generic | 80 | 29 | $309 |
| Oxycodone Hcl | Generic | 65 | 0 | $1,544 |
| Enbrel Sureclick (Etanercept) | Brand | 58 | 0 | $428,231 |
| Celecoxib | Generic | 55 | 12 | $2,639 |
| Sulfasalazine | Generic | 48 | 11 | $726 |
Hospital affiliations
Frequently asked questions
What is Dr. John McCahan's medical specialty?
Dr. John McCahan practices Rheumatology Physician in Bozeman, MT.
Where does Dr. John McCahan practice?
Dr. John McCahan practices at 931 Highland Blvd Ste 3260, Bozeman, MT 597156907. Office phone: 4064145198.
What is Dr. John McCahan's NPI?
Dr. John McCahan's National Provider Identifier (NPI) is 1144319922, issued by NPPES.
Does Dr. John McCahan accept Medicare assignment?
Yes. Dr. John McCahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John McCahan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.