Lynn Gehrmann, D.O.
NPI 1265663413 · Emergency Medicine Physician · Rhinelander, WI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lynn Gehrmann, D.O. is a Emergency Medicine Physician provider in Rhinelander, WI (NPI 1265663413).
Provider details
- NPI number
- 1265663413
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 56856-21 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
301 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 146 | $111 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 89 | $161 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 46 | $65 |
| Critical Care, First 30-74 Minutes99291 | 20 | $197 |
Typical Medicare-allowed amounts for these services range $65–$197 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 29 | — |
| Prednisone | 21 | 21 |
| Metoprolol Succinate | 20 | — |
| Ondansetronbrand: Ondansetron Odt | 20 | 19 |
| Atorvastatin Calcium | 18 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 14 | 13 |
Practice location
Mailing address
Additional practice locations (1)
- 3400 Ministry PkwyWeston, WI 54476-5213Phone: (715) 393-1000
Registry dates
- Enumerated
- 2009-08-06
- Last updated
- 2025-12-03
- Certified
- 2025-12-03
Frequently asked questions
- What is Lynn Gehrmann's NPI number?
- Lynn Gehrmann's National Provider Identifier (NPI) is 1265663413, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lynn Gehrmann's specialty?
- Lynn Gehrmann is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lynn Gehrmann located?
- Lynn Gehrmann's practice location on file with NPPES is 2251 N Shore Dr, Rhinelander, WI 54501-6710.
- What is Lynn Gehrmann's phone number?
- The practice phone number listed in the NPPES registry for Lynn Gehrmann is (715) 361-2100.
- Does Lynn Gehrmann accept Medicare?
- Lynn Gehrmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lynn Gehrmann's NPI active?
- Yes — Lynn Gehrmann's NPI (1265663413) is active in the NPPES registry as of the last update on 2025-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.