Robert T. Mazurek, M.D.
Orthopaedic Surgery Physician · Ventura, CA
Robert T. Mazurek, M.D. is an orthopaedic surgery physician with a practice address in Ventura, California, and NPI 1639191141, issued on Jul 24, 2006. Check the license (California A46108, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert T. Mazurek
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A46108 CA
Self-reported in NPPES; status is on the state search - Practice location
- 168 N Brent St, Ventura, CA 93003
- Phone
- (805) 641-0273
- Enumerated
- Jul 24, 2006
- Record last updated
- Feb 28, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (805) 641-0574
- Medicaid ID
- 00A461080 CA
- Medicare enrollment
- Enrolled (PECOS I20051206001053); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1985
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 168 N Brent St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joel Alpern, M.D.Internal Medicine Physician1942411657
- Nancy Anderson, N.P.Inpatient Obstetric Registered Nurse1942426960
- Amir Arfaei, MDPulmonary Disease Physician1841270584
- Duke Bahn, MDDiagnostic Radiology Physician1174579700
- Robert Bernstein, M.D.Critical Care Medicine (Internal Medicine) Physician1932205119
Verify Robert T. Mazurek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A46108Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
88 Medicare Part D claims for 57 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. 76 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen72 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.
Industry payments in 2024: $444.19
4 payments; by number, the most common kind was food and beverage; the largest payer was Cornerstone Medical Associates, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Community Memorial Health SystemVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert T. Mazurek among 2,276 orthopaedic surgery physician records in California
Robert T. Mazurek, 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
- Graduated1985 · median 2003 among the 1,347 with a school on file
- Record last updated2014 · 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 Ventura → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Charles Brenner, M.D.Ventura, CA 930031548299035
- Karl Buechsenschuetz, DOVentura, CA 930031043284326
- Gabriel Gluck, M.D.Ventura, CA 930031619975679
- Thomas Golden, M.D.Ventura, CA 930031063578458
- John Hill, M.D.Ventura, CA 930031811953623
- Jason Hofer, MDVentura, CA 930031962681718
- G. Dennis Horvath, D.O.Ventura, CA 930031932139565
- Allan MackenzieVentura, CA 930031467597252
Common questions
What is Robert T. Mazurek, M.D.'s NPI number?
Robert T. Mazurek, M.D.'s National Provider Identifier (NPI) is 1639191141, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert T. Mazurek, M.D. located?
The NPPES record lists a practice address at 168 N Brent St, Ventura, CA, 93003. Phone: (805) 641-0273. Providers update this record themselves, so call before visiting.
How can I verify Robert T. Mazurek, M.D.'s license?
NPPES lists California license number A46108, 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 Robert T. Mazurek, M.D. prescribe under Medicare Part D?
In 2024, Robert T. Mazurek, M.D. had 88 Medicare Part D claims for 57 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.