Lynn P. Gehrmann, D.O.
Emergency Medicine Physician · Rhinelander, WI
Lynn P. Gehrmann, D.O. is an emergency medicine physician with a practice address in Rhinelander, Wisconsin, and NPI 1265663413, issued on Aug 6, 2009. Check the license (Wisconsin 56856-21, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lynn P. Gehrmann
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 56856-21 WI
125.055956 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2251 N Shore Dr, Rhinelander, WI 54501
- Phone
- (715) 361-2100
- Enumerated
- Aug 6, 2009
- Record last updated
- Dec 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20120710000550); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 2251 N Shore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margaret Abel, MDInternal Medicine Physician1477590487
- Bruce Abrams, MDObstetrics & Gynecology Physician1710927413
- Amanda AertsRegistered Dietitian1922378579
- Dawn Baker, MDDiagnostic Radiology Physician1992889620
- Mark Banas, DOEmergency Medicine Physician1972698827
- Nancy Bauer, APNPFamily Nurse Practitioner1386685634
Verify Lynn P. Gehrmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 56856-21Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average emergency medicine physician in 2024
343 Medicare Part D claims for 168 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Eliquis29 claims
- Prednisone21 claims
- Metoprolol Succinate20 claims
- Ondansetron Odt20 claims
- Atorvastatin Calcium18 claims
- Azithromycin14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Rhinelander, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lynn P. Gehrmann among 1,464 emergency medicine physician records in Wisconsin
Lynn P. Gehrmann, D.O. is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.
- NPI issued2009 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2009 · median 2011 among the 844 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 emergency medicine physician records list a practice address in Rhinelander
They are 9 of the 497 NPPES records with a practice address in Rhinelander, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Rhinelander → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mark Banas, DORhinelander, WI 545011972698827
- James Grebner, MDRhinelander, WI 545011003901877
- Larry Hooper, MDRhinelander, WI 545011598848293
- Jamie Johnson, DORhinelander, WI 545011861577355
- Scott Marsan, MDRhinelander, WI 545011679656755
- Richard Mickevicius, MDRhinelander, WI 545011487749263
- Nathan Shefveland, M.D.Rhinelander, WI 545011811157753
- Peter Zenti, MDRhinelander, WI 545011508954108
Common questions
What is Lynn P. Gehrmann, D.O.'s NPI number?
Lynn P. Gehrmann, D.O.'s National Provider Identifier (NPI) is 1265663413, issued on Aug 6, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Lynn P. Gehrmann, D.O. located?
The NPPES record lists a practice address at 2251 N Shore Dr, Rhinelander, WI, 54501. Phone: (715) 361-2100. Providers update this record themselves, so call before visiting.
How can I verify Lynn P. Gehrmann, D.O.'s license?
NPPES lists Wisconsin license number 56856-21, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lynn P. Gehrmann, D.O. prescribe under Medicare Part D?
In 2024, Lynn P. Gehrmann, D.O. had 343 Medicare Part D claims for 168 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Lynn P. Gehrmann, D.O.'s MIPS final score?
The 2023 MIPS final score is 84.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.