Doctor profile · Federal record
Dr. Marilyn Grams, MD
Geriatric Medicine (Internal Medicine) Physician · Hospitalist Physician · Hospitalist Physician · Billings, MT
- NPI 1669492104
- MIPS 61.2 / 100 · 2023
- 20 yrs on file
- Licensed in 3 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2825 8Th Ave N
Billings, MT 591010909
(406) 238-2500 - Additional location
-
5505 S 900 E Ste 240
Murray, UT 841177210
(801) 783-5011
fax (801) 746-3734 - Mailing address
-
Po Box 35100
Billings, MT 591075100
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- April 23, 2019
- Specialty taxonomy
- 207RG0300X — NUCC code
- State licenses (3)
- Montana #10557 · Utah #8742023-1205 · Idaho #M-14661
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669492104. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
95
Distinct HCPCS
3
Medicare allowed
$12,747
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 53 | 53 | $156 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 24 | $129 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 18 | 15 | $78 |
In context: peer comparison
Among 1 peers in Billings Geriatric Medicine (Internal Medicine) Physician, average services per provider: 31. This provider delivers 3.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
104
Patients
0
Total drug cost
$1,246
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 18 | 0 | $299 |
| Mirtazapine | Generic | 18 | 0 | $175 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 17 | 0 | $250 |
| Metoprolol Succinate | Generic | 17 | 0 | $157 |
| Omeprazole | Generic | 17 | 0 | $130 |
| Venlafaxine Hcl ER (Venlafaxine Hcl) | Brand | 17 | 0 | $236 |
Frequently asked questions
What is Dr. Marilyn Grams's medical specialty?
Dr. Marilyn Grams practices Geriatric Medicine (Internal Medicine) Physician in Billings, MT.
Where does Dr. Marilyn Grams practice?
Dr. Marilyn Grams practices at 2825 8Th Ave N, Billings, MT 591010909. Office phone: 4062382500.
What is Dr. Marilyn Grams's NPI?
Dr. Marilyn Grams's National Provider Identifier (NPI) is 1669492104, issued by NPPES.
What procedures does Dr. Marilyn Grams commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.