Paul Marian Cisarik, MD
Internal Medicine Physician · Oxnard, CA
Paul Marian Cisarik, MD is an internal medicine physician with a practice address in Oxnard, California, and NPI 1952515421, issued on May 10, 2007. Check the license (California C151923, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul Marian Cisarik
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C151923 CA
57009970 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2361 E Vineyard Ave, Oxnard, CA 93036
- Phone
- (805) 981-3770
- Enumerated
- May 10, 2007
- Record last updated
- Oct 12, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081118000018); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2361 E Vineyard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Arantxa Medina-AlegriaRegistered Dietitian1922858190
Verify Paul Marian Cisarik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C151923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average internal medicine physician in 2024
4,147 Medicare Part D claims for 297 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 171 claims were for opioids.
Most prescribed
- Atorvastatin Calcium315 claims
- Amlodipine Besylate258 claims
- Levothyroxine Sodium157 claims
- Losartan Potassium132 claims
- Valsartan120 claims
- Ozempic112 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: $648.45
31 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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).
44 internal medicine physician records list a practice address in Oxnard
They are 44 of the 3,211 NPPES records with a practice address in Oxnard, and 17,696 internal medicine physician records in California.
All 44 in Oxnard → All 17,696 in California → Every provider in Oxnard →
Other internal medicine physician records in California
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- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Paul Marian Cisarik, MD's NPI number?
Paul Marian Cisarik, MD's National Provider Identifier (NPI) is 1952515421, issued on May 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Paul Marian Cisarik, MD located?
The NPPES record lists a practice address at 2361 E Vineyard Ave, Oxnard, CA, 93036. Phone: (805) 981-3770. Providers update this record themselves, so call before visiting.
How can I verify Paul Marian Cisarik, MD's license?
NPPES lists California license number C151923, 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 Paul Marian Cisarik, MD prescribe under Medicare Part D?
In 2024, Paul Marian Cisarik, MD had 4,147 Medicare Part D claims for 297 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.