Doctor profile · Federal record
Dr. Lynn Gehrmann, D.O.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Rhinelander, WI
- NPI 1265663413
- Accepts Medicare
- MIPS 84.6 / 100 · 2023
- 17 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2251 N Shore Dr
Rhinelander, WI 545016710
(715) 361-2100 - Additional location
-
3400 Ministry Pkwy
Weston, WI 544765213
(715) 393-1000
Credentials & registration
- NPI registered
- August 2009 — 17 yrs on file
- Profile last updated
- December 3, 2025
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Wisconsin #56856-21 · Illinois #125.055956
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265663413. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
374
Distinct HCPCS
5
Medicare allowed
$39,105
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 147 | 137 | $112 | |
99285 |
Emergency department visit with high level of medical decision making | 89 | 88 | $163 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 61 | 56 | $8 | |
99283 |
Emergency department visit with low level of medical decision making | 58 | 54 | $66 | |
99291 |
Critical care, first 30-74 minutes | 19 | 19 | $199 |
In context: peer comparison
Among 2 peers in Rhinelander Emergency Medicine Physician, average services per provider: 71. This provider delivers 5.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
58
Patients
55
Total drug cost
$394
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 23 | 22 | $172 |
| Ondansetron Odt (Ondansetron) | Brand | 22 | 20 | $193 |
| Prednisone | Generic | 13 | 13 | $30 |
Frequently asked questions
What is Dr. Lynn Gehrmann's medical specialty?
Dr. Lynn Gehrmann practices Emergency Medicine Physician in Rhinelander, WI.
Where does Dr. Lynn Gehrmann practice?
Dr. Lynn Gehrmann practices at 2251 N Shore Dr, Rhinelander, WI 545016710. Office phone: 7153612100.
What is Dr. Lynn Gehrmann's NPI?
Dr. Lynn Gehrmann's National Provider Identifier (NPI) is 1265663413, issued by NPPES.
Does Dr. Lynn Gehrmann accept Medicare assignment?
Yes. Dr. Lynn Gehrmann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lynn Gehrmann commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.