Dr. Timothy Michael Wimmer, MD

  • Anaheim, CA
  • Orthopedic surgeon
NPI1811955735PAC ID0446429989
Medicare services, 2024
1,980
Medicare patients, 2024
316
Part D claims, 2024
156
Hospital affiliations
3
Industry payments
$2,546
Practice address
200 W Center Street Promenade, Anaheim, CA 92805
Practice phone
Call (657) 640-8090
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Providence at Home With Compassus Home Health Orange County

Home Health Agency - Main Office · Anaheim, California

See all 9 affiliations

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Dr. Timothy Michael Wimmer is an orthopedic surgeon in Anaheim, California

Dr. Wimmer practices at Providence at Home With Compassus Home Health Orange County in Anaheim, California.

Dr. Wimmer's NPI, 1811955735, was assigned on May 2, 2006. Dr. Wimmer graduated from Saint Louis University School Of Medicine in 2000. Dr. Wimmer holds California license C54546.

NPI and contact details
Medicare PAC ID
0446429989
NPI enumeration date
May 2, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(657) 640-8090
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
52
Medical school graduation
2000

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Timothy Michael Wimmer practices at Providence at Home With Compassus Home Health Orange County in Anaheim, California

Dr. Wimmer's primary practice is Providence at Home With Compassus Home Health Orange County, at 200 W Center Street Promenade, Anaheim, CA 92805. The practice phone is (657) 640-8090.

  • Providence at Home With Compassus Home Health Orange County
    200 W Center Street Promenade, Anaheim, CA 92805Phone(657) 640-8090

Source: Dmand AI Affiliation Data

Dr. Timothy Michael Wimmer is affiliated with 7 sites of care and 2 medical groups

Dr. Wimmer's primary practice is Providence at Home With Compassus Home Health Orange County in Anaheim, California. Dr. Wimmer is also affiliated with Providence St. Joseph Hospital Eureka. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Wimmer to 2 more hospitals, 2 group practices and clinics, 1 hospice and 1 medical group, each named with a free account. Dr. Wimmer's employer is on file too: a home health agency.

See all 9 affiliations for Dr. Wimmer

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Timothy Michael Wimmer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wimmer practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Providence at Home With Compassus Home Health Orange CountyAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Timothy Michael Wimmer is one of 2,056 orthopedic surgeons in California

Orthopaedic surgery is Dr. Wimmer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Wimmer is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Wimmer's licenses on file in 4 states: California, Oregon, Indiana and Montana.

Specialties and state licenses

  • Orthopaedic surgery, CaliforniaPrimaryLicense C54546 · 2011 to 2026 · taxonomy 207X00000X
  • Oregon license2012 to 2025
  • Indiana licenseLicense IN 01055470 · 2001 to 2023
  • Montana license2014 to 2018

Clinical focus

Dmand AI lists arthritis, carpal tunnel syndrome, enthesopathy in arms, hand joint or tendon inflammation, hip replacement, joint pain, knee arthroscopy and knee injury among the conditions Dr. Wimmer treats.

Orthopedic surgeons near Dr. Wimmer

Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Timothy Michael Wimmer billed Medicare for 1,980 services in 2024

CMS data shows 1,980 Medicare services from Dr. Wimmer across 13 procedure codes in 2024, for 316 Medicare patients. Medicare paid $101,621 for them.

Medicare services, 20241,980
Medicare patients316
Paid by Medicare$101,621
Procedure codes13

Dr. Wimmer's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 9652024: 1,19424%
Office and hospital visits
2023: 4612024: 4258%
Imaging
2023: 1842024: 20813%
Surgery
2023: 1602024: 1534%

Where Dr. Wimmer's Medicare services took place, 2024

  • In an office1,90896%
  • In a facility724%

Dr. Wimmer compared with the California median for orthopedic surgeons, 2024

  • Dr. Wimmer
  • California median
Medicare services
1,980vs 6832.9 times
Medicare patients
316vs 21547% above
Part D claims
128vs 7083% above

Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.

Dr. Wimmer's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Wimmer

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Timothy Michael Wimmer treated 316 Medicare patients in 2024, average age 72

CMS counts 316 Medicare patients who saw Dr. Wimmer in 2024. The largest group is 65 to 74, with 158 patients. 75% of them have arthritis, and 65% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Wimmer's median patient age at 55, with 57% women.

Medicare patients, 2024316
Average age72
Average risk score1.00
Also on Medicaid30%

Dr. Wimmer's Medicare patients by age, 2024

Dr. Wimmer's Medicare patients by sex, 2024

  • Women20063%
  • Men11637%

Chronic conditions among Dr. Wimmer's Medicare patients, 2024

  1. Arthritis75%
  2. High cholesterol65%
  3. High blood pressure62%
  4. Mood disorders26%
  5. Anxiety25%
  6. Depression22%
  7. Diabetes22%
  8. Atrial fibrillation16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Wimmer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 55

Patient panel by sex, all payers

  • Women57%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Timothy Michael Wimmer wrote 156 Medicare Part D claims in 2024

In 2024, Dr. Wimmer wrote 156 Medicare Part D claims for 54 patients. 100% of them were for generic drugs. CMS names the drug for 128 of them, across 3 drugs with 11 or more claims each, at $592 in total drug cost. In 2023, CMS named 62 claims across 4 drugs.

Part D claims, 2024156
Drugs named by CMS3
Total drug cost$592
Part D patients54

Dr. Wimmer's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Wimmer's Part D claims, 2024

  • Opioids39%61 of 156 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 622024: 128106%

Drugs named by CMS: 3 in 2024, 4 in 2023.

See all prescribing by Dr. Wimmer

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Timothy Michael Wimmer ranks in the 92nd percentile for lower limb (leg) arthroscopy (minimally invasive joint repair) in Medicare

Dr. Wimmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Dr. Wimmer, more than 92% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Wimmer ranks in Medicare procedure volume

Lower limb (leg) arthroscopy (minimally invasive joint repair)
92nd percentile19 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Timothy Michael Wimmer received $2,546 in industry payments from 2017 to 2025

CMS Open Payments shows 21 general payments to Dr. Wimmer from 9 drug and device companies from 2017 to 2025. Education make up the largest share, 41% of the total. SportsTek Medical, Inc paid the most, $1,035.

General payments to Dr. Wimmer by program year, 2017 to 2025

General payments to Dr. Wimmer by kind, 2017 to 2025

$2.5Kin total
  • Education$1,03541%
  • Food and beverage$1,02640%
  • Travel and lodging$48519%

Companies that paid Dr. Wimmer the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Wimmer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Timothy Michael Wimmer graduated from Saint Louis University School Of Medicine

Dr. Wimmer graduated from Saint Louis University School Of Medicine in 2000.

  1. Medical schoolSaint Louis University School Of Medicine
  2. Board certified in orthopaedic surgeryAmerican Board of Orthopaedic Surgery

Source: Dmand AI Professional Profile Data

Dr. Timothy Michael Wimmer accepts plans from 13 insurance carriers

Dr. Wimmer is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +5 more carriersWith a free account

Plan types Dr. Wimmer accepts, by number of carriers

  1. Medicare8
  2. PPO8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Timothy Michael Wimmer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Timothy Michael Wimmer

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Timothy Michael Wimmer's NPI number?

Dr. Timothy Michael Wimmer's NPI number is 1811955735. It was assigned on May 2, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Timothy Michael Wimmer?

Dr. Timothy Michael Wimmer is an orthopedic surgeon in Anaheim, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Timothy Michael Wimmer practice?

Dr. Wimmer practices at 200 W Center Street Promenade, Anaheim, CA 92805. Dr. Wimmer's primary practice is Providence at Home With Compassus Home Health Orange County in Anaheim, California. Dmand AI also links Dr. Wimmer to 2 hospitals, 2 group practices and clinics, 1 hospice and 1 medical group.

What is Dr. Timothy Michael Wimmer's office phone number?

The practice phone on file for Dr. Wimmer is (657) 640-8090.

What is Dr. Timothy Michael Wimmer's medical license number?

Dr. Wimmer holds California license C54546, one of the licenses on file in 4 states.

Which states has Dr. Timothy Michael Wimmer been licensed in?

Dmand AI has state licenses on file for Dr. Wimmer in California (2011 to 2026), Oregon (2012 to 2025), Indiana (2001 to 2023) and Montana (2014 to 2018).

Which hospitals is Dr. Timothy Michael Wimmer affiliated with?

Dr. Wimmer is affiliated with Providence St. Joseph Hospital Eureka. Dmand AI links Dr. Wimmer to 2 more hospitals.

What medical group is Dr. Timothy Michael Wimmer part of?

Dr. Wimmer is linked to St. Jude Heritage Medical Group. Dmand AI links Dr. Wimmer to 1 more medical group.

Does Dr. Timothy Michael Wimmer accept Medicare?

Yes. CMS data shows Dr. Wimmer billed Medicare for 1,980 services in 2024, and Dr. Wimmer accepts Medicare assignment.

How many Medicare patients does Dr. Timothy Michael Wimmer see?

CMS counts 316 Medicare patients who saw Dr. Wimmer in 2024, with an average age of 72.

Show 7 more questionsShow fewer questions

Is Dr. Timothy Michael Wimmer board certified?

Yes. Dr. Wimmer is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.

What services does Dr. Timothy Michael Wimmer bill to Medicare?

In 2024, Dr. Wimmer's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99213) and diagnostic imaging (73564).

Where did Dr. Timothy Michael Wimmer go to medical school?

Dr. Wimmer graduated from Saint Louis University School Of Medicine in 2000.

What drugs does Dr. Timothy Michael Wimmer prescribe most?

In 2024 Medicare Part D data, Dr. Wimmer's most prescribed drugs by claims were Oxycodone HCl, Ondansetron ODT and Naproxen.

Has Dr. Timothy Michael Wimmer received payments from drug or device companies?

CMS Open Payments shows $2,546 in general payments to Dr. Wimmer from 9 companies from 2017 to 2025. The largest total came from SportsTek Medical, Inc.

How long has Dr. Timothy Michael Wimmer been practicing?

Dr. Wimmer graduated from medical school in 2000, 26 years ago.

What insurance does Dr. Timothy Michael Wimmer accept?

Dr. Wimmer is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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