Michael Louis Dworkin, MD
Radiation Oncology Physician · Santa Cruz, CA
Michael Louis Dworkin, MD is a radiation oncology physician with a practice address in Santa Cruz, California, and NPI 1922505924, issued on Apr 7, 2018. Check the license (California A166759, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Louis Dworkin
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A166759 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1575 Soquel Dr, Santa Cruz, CA 95065
- Phone
- (831) 462-3050
- Enumerated
- Apr 7, 2018
- Record last updated
- Mar 6, 2024
- Medicare enrollment
- Enrolled (PECOS I20231002003190); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 1575 Soquel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Allen, MDColon & Rectal Surgery Physician1871586610
- Joydip Bhattacharya, D.ONeurology Physician1245277714
- Charlotte Kim, M.D.Radiation Oncology Physician1013079649
- Daniel Manion, PAPhysician Assistant1821145749
- Jay Meisel, M.D.Radiation Oncology Physician1720140353
- Surindra Mitruka, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1861590382
Verify Michael Louis Dworkin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A166759Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average radiation oncology physician in 2024
134 Medicare Part D claims for 61 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Tamsulosin Hcl40 claims
- Orgovyx27 claims
- Triamcinolone Acetonide17 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: $552.26
17 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Sutter Bay Medical FoundationSanta Cruz, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Louis Dworkin among 735 radiation oncology physician records in California
Michael Louis Dworkin, MD is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 89% of them.
- NPI issued2018 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2018 · median 2005 among the 545 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Santa Cruz → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Charlotte Kim, M.D.Santa Cruz, CA 950651013079649
- Jay Meisel, M.D.Santa Cruz, CA 950651720140353
- Benjamin Fisch, MDSanta Clara, CA 950511922185859
- Joseph Hastings, MD, MPHSanta Clara, CA 950511194815134
- Anita Lee, MDSanta Clara, CA 950511790773448
- Wilson Mai, MD, PHDSanta Clara, CA 950511285210633
- Brian Missett, MDSanta Clara, CA 950511679651251
- Subir Nag, MDSanta Clara, CA 950511962552778
Common questions
What is Michael Louis Dworkin, MD's NPI number?
Michael Louis Dworkin, MD's National Provider Identifier (NPI) is 1922505924, issued on Apr 7, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Michael Louis Dworkin, MD located?
The NPPES record lists a practice address at 1575 Soquel Dr, Santa Cruz, CA, 95065. Phone: (831) 462-3050. Providers update this record themselves, so call before visiting.
How can I verify Michael Louis Dworkin, MD's license?
NPPES lists California license number A166759, 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 Michael Louis Dworkin, MD prescribe under Medicare Part D?
In 2024, Michael Louis Dworkin, MD had 134 Medicare Part D claims for 61 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.