Dr. Robert T. Mazurek, MD
- Medicare services, 2024
- 431
- Medicare patients, 2024
- 178
- Part D claims, 2024
- 88
- Hospital affiliations
- 1
- Industry payments
- $1,561
- Practice address
- 2361 E Vineyard Ave, Oxnard, CA 93036
- Practice phone
- Call (805) 981-3770
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Community Memorial Health System
Oxnard, California
Find Dr. Mazurek's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert T. Mazurek is an orthopedic surgeon in Oxnard, California
Dr. Mazurek practices at Community Memorial Health System in Oxnard, California.
Dr. Mazurek's NPI, 1639191141, was assigned on July 24, 2006. Dr. Mazurek graduated from LSU Health Sciences Center New Orleans - School of Medicine in 1985. Dr. Mazurek holds California license A46108.
- NPI
- 1639191141NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193745040
- NPI enumeration date
- July 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 981-3770
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert T. Mazurek practices at Community Memorial Health System in Oxnard, California
Dr. Mazurek's primary practice is Community Memorial Health System, at 2361 E Vineyard Ave, Oxnard, CA 93036 in Ventura County. The practice phone is (805) 981-3770.
- Community Memorial Health System2361 E Vineyard Ave, Oxnard, CA 93036 · Ventura CountyPhone(805) 981-3770
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert T. Mazurek is affiliated with 5 sites of care and 1 medical group
Dr. Mazurek's primary practice is Community Memorial Health System in Oxnard, California. Dr. Mazurek is also affiliated with Community Memorial Hospital - Ventura. The medical group on file is Community Memorial Healthcare. Dmand AI also links Dr. Mazurek to 2 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert T. Mazurek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mazurek practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Memorial Health System | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert T. Mazurek is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Mazurek's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Mazurek is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Mazurek's licenses on file in 3 states: California, Georgia and Louisiana.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Georgia license
- Louisiana license
Clinical focus
Dmand AI lists arthritis, bursitis, enthesopathy in arms, hand joint or tendon inflammation, hip replacement, joint arthropathy, joint pain and knee arthroscopy among the conditions Dr. Mazurek treats.
Orthopedic surgeons near Dr. Mazurek
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. Robert T. Mazurek billed Medicare for 431 services in 2024
CMS data shows 431 Medicare services from Dr. Mazurek across 6 procedure codes in 2024, for 178 Medicare patients. Medicare paid $38,146 for them.
Dr. Mazurek's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2572024: 2799%
- Surgery
- 2023: 1292024: 15218%
- Drugs given in the office
- 2023: 732024: 0100%
Where Dr. Mazurek's Medicare services took place, 2024
- In an office41496%
- In a facility174%
Dr. Mazurek compared with the California median for orthopedic surgeons, 2024
- Dr. Mazurek
- California median
- Medicare services
- 431vs 68337% below
- Medicare patients
- 178vs 21517% below
- Part D claims
- 72vs 70Close to median
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Mazurek'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.
Need commercial claims for Dr. Mazurek?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mazurek and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert T. Mazurek treated 178 Medicare patients in 2024, average age 73
CMS counts 178 Medicare patients who saw Dr. Mazurek in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have arthritis, and 75% have high blood pressure. 54% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mazurek's median patient age at 66, with 62% women.
Dr. Mazurek's Medicare patients by age, 2024
Dr. Mazurek's Medicare patients by sex, 2024
- Women10660%
- Men7240%
Chronic conditions among Dr. Mazurek's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes38%
- Mood disorders31%
- Depression29%
- Anxiety26%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mazurek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert T. Mazurek wrote 88 Medicare Part D claims in 2024
In 2024, Dr. Mazurek wrote 88 Medicare Part D claims for 57 patients. 100% of them were for generic drugs. CMS names the drug for 72 of them, across 1 drug with 11 or more claims each, at $847 in total drug cost. In 2023, CMS named 67 claims across 2 drugs.
Dr. Mazurek'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. Mazurek's Part D claims, 2024
- Opioids86%76 of 88 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: 672024: 727%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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. Robert T. Mazurek ranks in the 45th percentile for knee replacement in Medicare
Dr. Mazurek accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 15 procedures of knee replacement by Dr. Mazurek, more than 45% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Mazurek ranks in Medicare procedure volume
- Knee replacement
- 45th percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Upper limb (arm) arthroscopy (minimally invasive joint repair): 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. Robert T. Mazurek received $1,561 in industry payments from 2016 to 2024
CMS Open Payments shows 27 general payments to Dr. Mazurek from 11 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 83% of the total. Zimmer Biomet Holdings, Inc. paid the most, $796.
General payments to Dr. Mazurek by program year, 2016 to 2024
General payments to Dr. Mazurek by kind, 2016 to 2024
- Food and beverage$1,30283%
- Travel and lodging$21013%
- Education$503%
Companies that paid Dr. Mazurek the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert T. Mazurek graduated from LSU Health Sciences Center New Orleans - School of Medicine
Dr. Mazurek graduated from LSU Health Sciences Center New Orleans - School of Medicine in 1985.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Robert T. Mazurek accepts plans from 14 insurance carriers
Dr. Mazurek is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Mazurek accepts, by number of carriers
- PPO11
- Medicare9
- HMO5
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert T. Mazurek's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert T. Mazurek
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. Robert T. Mazurek's NPI number?
Dr. Robert T. Mazurek's NPI number is 1639191141. It was assigned on July 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert T. Mazurek?
Dr. Robert T. Mazurek is an orthopedic surgeon in Oxnard, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Robert T. Mazurek practice?
Dr. Mazurek practices at 2361 E Vineyard Ave, Oxnard, CA 93036. Dr. Mazurek's primary practice is Community Memorial Health System in Oxnard, California. Dmand AI also links Dr. Mazurek to 2 home health agencies and 1 group practice or clinic.
What is Dr. Robert T. Mazurek's office phone number?
The practice phone on file for Dr. Mazurek is (805) 981-3770.
What is Dr. Robert T. Mazurek's medical license number?
Dr. Mazurek holds California license A46108, one of the licenses on file in 3 states.
Which states has Dr. Robert T. Mazurek been licensed in?
Dmand AI has state licenses on file for Dr. Mazurek in California (1989 to 2027), Georgia (1989 to 1993) and Louisiana (1985 to 1993).
Which hospitals is Dr. Robert T. Mazurek affiliated with?
Dr. Mazurek is affiliated with Community Memorial Hospital - Ventura.
What medical group is Dr. Robert T. Mazurek part of?
Dr. Mazurek is linked to Community Memorial Healthcare.
Does Dr. Robert T. Mazurek accept Medicare?
Yes. CMS data shows Dr. Mazurek billed Medicare for 431 services in 2024, and Dr. Mazurek accepts Medicare assignment.
How many Medicare patients does Dr. Robert T. Mazurek see?
CMS counts 178 Medicare patients who saw Dr. Mazurek in 2024, with an average age of 73.
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Is Dr. Robert T. Mazurek board certified?
Yes. Dr. Mazurek is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Robert T. Mazurek bill to Medicare?
In 2024, Dr. Mazurek's most billed Medicare services were office visit, established patient (99213), surgery: bones and joints (20610) and office visit, new patient (99203).
Where did Dr. Robert T. Mazurek go to medical school?
Dr. Mazurek graduated from LSU Health Sciences Center New Orleans - School of Medicine in 1985.
What drugs does Dr. Robert T. Mazurek prescribe most?
In 2024 Medicare Part D data, Dr. Mazurek's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Robert T. Mazurek received payments from drug or device companies?
CMS Open Payments shows $1,561 in general payments to Dr. Mazurek from 11 companies from 2016 to 2024. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Robert T. Mazurek been practicing?
Dr. Mazurek graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Robert T. Mazurek accept?
Dr. Mazurek is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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