Doctor profile · Federal record
Dr. Jeffrey Rentz, M.D.
Specialist (CMS: General Surgery) · Surgery Physician · Billings, MT
- NPI 1851363667
- Accepts Medicare
- MIPS 85.6 / 100 · 2023
- 28 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2900 12Th Ave N, Suite 355W
Billings, MT 591017506
(406) 238-6470
fax (406) 238-6499 - Mailing address
-
1450 Shade Tree Cir
Billings, MT 591027964
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 174400000X — NUCC code
- State licenses (2)
- Montana #11279 · Massachusetts #226178
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851363667. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
312
Distinct HCPCS
9
Medicare allowed
$39,987
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 108 | 59 | $79 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 50 | 48 | $173 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 34 | 34 | $167 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 33 | 33 | $220 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 27 | 26 | $128 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 19 | 16 | $90 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 16 | 15 | $50 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 14 | 14 | $179 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $130 |
In context: peer comparison
Among 2 peers in Billings Specialist, average services per provider: 51. This provider delivers 6.1× the peer median.Open Payments
Industry payments received
All-time total
$52,445
Transactions
51
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 50 | $52,420.64 | |
| Solventum Corporation | 1 | $24.80 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
72
Patients
57
Total drug cost
$242
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tramadol Hcl | Generic | 38 | 35 | $58 |
| Methocarbamol | Generic | 22 | 11 | $146 |
| Oxycodone Hcl | Generic | 12 | 11 | $38 |
Hospital affiliations
Frequently asked questions
What is Dr. Jeffrey Rentz's medical specialty?
Dr. Jeffrey Rentz practices Specialist in Billings, MT.
Where does Dr. Jeffrey Rentz practice?
Dr. Jeffrey Rentz practices at 2900 12Th Ave N, Billings, MT 591017506. Office phone: 4062386470.
What is Dr. Jeffrey Rentz's NPI?
Dr. Jeffrey Rentz's National Provider Identifier (NPI) is 1851363667, issued by NPPES.
Does Dr. Jeffrey Rentz accept Medicare assignment?
Yes. Dr. Jeffrey Rentz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jeffrey Rentz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.