Petros Kostas Frousiakis, DO
Sports Medicine (Orthopaedic Surgery) Physician · Ventura, CA
Petros Kostas Frousiakis, DO is a sports medicine (orthopaedic surgery) physician with a practice address in Ventura, California, and NPI 1932549219, issued on Jul 1, 2013. Check the license (California 20A13803, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Petros Kostas Frousiakis
- Credential
- DO
- Primary taxonomy
- Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
- License number
- 20A13803 CA
Self-reported in NPPES; status is on the state search - Practice location
- 168 N Brent St Ste 302, Ventura, CA 93003
- Phone
- (805) 948-6373
- Enumerated
- Jul 1, 2013
- Record last updated
- Jun 17, 2025
- Fax
- (805) 948-1470
- Medicare enrollment
- Enrolled (PECOS I20181022003454); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest sports medicine (orthopaedic surgery) physician records → All 384 in California → Look up another NPI →
Also registered at 168 N Brent St Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lois Barnes, M.D.Obstetrics & Gynecology Physician1134233521
- Fredrick Menninger, M.D.Sports Medicine (Orthopaedic Surgery) Physician1275599177
- Ann SalahuddinHematology & Oncology Physician1053350231
Verify Petros Kostas Frousiakis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13803Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024
153 Medicare Part D claims for 84 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 123 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen77 claims
- Hydrocodone-Acetaminophen38 claims
- Amoxicillin14 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: $153.46
4 payments; by number, the most common kind was food and beverage; the largest payer was Cornerstone Medical Associates, Inc. The 2,400 providers of this specialty with any payment received $19,779.31 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).
Petros Kostas Frousiakis among 384 sports medicine (orthopaedic surgery) physician records in California
Petros Kostas Frousiakis, DO is one of 384 sports medicine (orthopaedic surgery) physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 77% of them.
- NPI issued2013 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2013 · median 2003 among the 293 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sports Medicine (Orthopaedic Surgery) Physician providers in California
There are 384 sports medicine (orthopaedic surgery) physician records in California.
All 384 in California → Every provider in Ventura → Sports Medicine (Orthopaedic Surgery) Physician nationwide →
The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes
- Fredrick Menninger, M.D.Ventura, CA 930031275599177
- Ferris Nickel, M.D.Ventura, CA 930031548226350
- Kentaro Suzuki, M.D.Ventura, CA 930031205090289
- Ali Motamedi, M.D.Camarillo, CA 930101295801744
- Mark Ghilarducci, M.D.Oxnard, CA 930301922063700
- Andrew Horn, MDOxnard, CA 930301497374128
- Thomas Wu, M.D.Oxnard, CA 930331568640720
- Daniel Davis, MDSimi Valley, CA 930651730150830
Common questions
What is Petros Kostas Frousiakis, DO's NPI number?
Petros Kostas Frousiakis, DO's National Provider Identifier (NPI) is 1932549219, issued on Jul 1, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Petros Kostas Frousiakis, DO located?
The NPPES record lists a practice address at 168 N Brent St Ste 302, Ventura, CA, 93003. Phone: (805) 948-6373. Providers update this record themselves, so call before visiting.
How can I verify Petros Kostas Frousiakis, DO's license?
NPPES lists California license number 20A13803, 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 Petros Kostas Frousiakis, DO prescribe under Medicare Part D?
In 2024, Petros Kostas Frousiakis, DO had 153 Medicare Part D claims for 84 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. 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.