Timothy Michael Wimmer, M.D.
Orthopaedic Surgery Physician · Eureka, CA
Timothy Michael Wimmer, M.D. is an orthopaedic surgery physician with a practice address in Eureka, California, and NPI 1811955735, issued on May 2, 2006. Check the license (California C54546, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy Michael Wimmer
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- C54546 CA
IN 01055470 IN
Self-reported in NPPES; status is on the state search - Practice location
- 2826 Harris St, Eureka, CA 95503
- Phone
- (707) 443-8066
- Enumerated
- May 2, 2006
- Record last updated
- Sep 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20110817000837); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 2826 Harris St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Emmons, M.D.Orthopaedic Surgery Physician1215967773
- Daniel Farnum, M.D.Orthopaedic Surgery Physician1316164999
- Paul Gustavson, PA-CPhysician Assistant1295754752
- Williiam Kilgore, M.D.Orthopaedic Surgery Physician1508891029
- Raymond Koch, M.D.Orthopaedic Surgery Physician1245268549
- John Kurylo, MDOrthopaedic Surgery Physician1467611988
Verify Timothy Michael Wimmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C54546Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
156 Medicare Part D claims for 54 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 61 claims were for opioids.
Most prescribed
- Oxycodone Hcl52 claims
- Ondansetron Odt39 claims
- Naproxen37 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.
Bills Medicare through one group practice
- Providence Medical FoundationEureka, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Michael Wimmer among 2,276 orthopaedic surgery physician records in California
Timothy Michael Wimmer, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2000 · median 2003 among the 1,347 with a school on file
- Record last updated2024 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Eureka → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Edward Emmons, M.D.Eureka, CA 955031215967773
- Daniel Farnum, M.D.Eureka, CA 955031316164999
- Williiam Kilgore, M.D.Eureka, CA 955031508891029
- Raymond Koch, M.D.Eureka, CA 955031245268549
- John Kurylo, MDEureka, CA 955031467611988
- Mark Lau, M.D.Eureka, CA 955031962433235
- Erik McGoldrick, M.D.Eureka, CA 955031528258738
- Nathan Shishido, M.D.Eureka, CA 955031124052725
Common questions
What is Timothy Michael Wimmer, M.D.'s NPI number?
Timothy Michael Wimmer, M.D.'s National Provider Identifier (NPI) is 1811955735, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Michael Wimmer, M.D. located?
The NPPES record lists a practice address at 2826 Harris St, Eureka, CA, 95503. Phone: (707) 443-8066. Providers update this record themselves, so call before visiting.
How can I verify Timothy Michael Wimmer, M.D.'s license?
NPPES lists California license number C54546, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Michael Wimmer, M.D. prescribe under Medicare Part D?
In 2024, Timothy Michael Wimmer, M.D. had 156 Medicare Part D claims for 54 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
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.